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if fossils of fish are found in a place then that place used to be covered by water in the past & fossils of fish are found on the land & a land is a kind of place -> the land used to be covered by water in the <mask> | past |
if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & a trilobite is a kind of water animal -> if <mask> of trilobites are found in a place, then that place used to be covered by water in the past | fossils |
if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & a trilobite is a kind of water animal -> if fossils of <mask> are found in a place, then that place used to be covered by water in the past | trilobites |
if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & a trilobite is a kind of water animal -> if fossils of trilobites are <mask> in a place, then that place used to be covered by water in the past | found |
if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & a trilobite is a kind of water animal -> if fossils of trilobites are found in a place, then that <mask> used to be covered by water in the past | place |
if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & a trilobite is a kind of water animal -> if fossils of trilobites are found in a place, then that place <mask> to be covered by water in the past | used |
if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & a trilobite is a kind of water animal -> if fossils of trilobites are found in a place, then that place used to be <mask> by water in the past | covered |
if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & a trilobite is a kind of water animal -> if fossils of trilobites are found in a place, then that place used to be covered by <mask> in the past | water |
if fossils of a water animal or plant are found in a place then that place used to be covered by water in the past & a trilobite is a kind of water animal -> if fossils of trilobites are found in a place, then that place used to be covered by water in the <mask> | past |
if fossils of trilobites are found in a place, then that place used to be covered by water in the past & fossils of trilobites are found in ohio & ohio is a kind of place -> <mask> used to be covered by water in the past | ohio |
if fossils of trilobites are found in a place, then that place used to be covered by water in the past & fossils of trilobites are found in ohio & ohio is a kind of place -> ohio <mask> to be covered by water in the past | used |
if fossils of trilobites are found in a place, then that place used to be covered by water in the past & fossils of trilobites are found in ohio & ohio is a kind of place -> ohio used to be <mask> by water in the past | covered |
if fossils of trilobites are found in a place, then that place used to be covered by water in the past & fossils of trilobites are found in ohio & ohio is a kind of place -> ohio used to be covered by <mask> in the past | water |
if fossils of trilobites are found in a place, then that place used to be covered by water in the past & fossils of trilobites are found in ohio & ohio is a kind of place -> ohio used to be covered by water in the <mask> | past |
teeth are part of a shark & fossils of shark teeth are discovered on the side of a cliff -> <mask> of sharks are discovered on the side of a cliff | fossils |
teeth are part of a shark & fossils of shark teeth are discovered on the side of a cliff -> fossils of <mask> are discovered on the side of a cliff | sharks |
teeth are part of a shark & fossils of shark teeth are discovered on the side of a cliff -> fossils of sharks are <mask> on the side of a cliff | discovered |
teeth are part of a shark & fossils of shark teeth are discovered on the side of a cliff -> fossils of sharks are discovered on the <mask> of a cliff | side |
teeth are part of a shark & fossils of shark teeth are discovered on the side of a cliff -> fossils of sharks are discovered on the side of a <mask> | cliff |
a fish is a kind of aquatic animal & a shark is a kind of fish -> <mask> are a kind of aquatic animal | sharks |
a fish is a kind of aquatic animal & a shark is a kind of fish -> sharks are a <mask> of aquatic animal | kind |
a fish is a kind of aquatic animal & a shark is a kind of fish -> sharks are a kind of <mask> animal | aquatic |
a fish is a kind of aquatic animal & a shark is a kind of fish -> sharks are a kind of aquatic <mask> | animal |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if <mask> of sharks are found on the side of a cliff, then the side of the cliff used to be covered by water in the past | fossils |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of <mask> are found on the side of a cliff, then the side of the cliff used to be covered by water in the past | sharks |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are <mask> on the side of a cliff, then the side of the cliff used to be covered by water in the past | found |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found on the <mask> of a cliff, then the side of the cliff used to be covered by water in the past | side |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found on the side of a cliff, then the <mask> of the cliff used to be covered by water in the past | side |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found on the side of a cliff, then the side of the <mask> used to be covered by water in the past | cliff |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found on the side of a cliff, then the side of the cliff <mask> to be covered by water in the past | used |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found on the side of a cliff, then the side of the cliff used to be <mask> by water in the past | covered |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found on the side of a cliff, then the side of the cliff used to be covered by <mask> in the past | water |
fossils of sharks are discovered on the side of a cliff & sharks are a kind of aquatic animal & if fossils of a aquatic animal or plant are found in a place then that place used to be covered by water in the past -> if fossils of sharks are found on the side of a cliff, then the side of the cliff used to be covered by water in the <mask> | past |
if fossils of sharks are found on the side of a cliff, then the side of the cliff used to be covered by water in the past & sharks live in shallow seas -> the <mask> of the cliff used to be a shallow sea | side |
if fossils of sharks are found on the side of a cliff, then the side of the cliff used to be covered by water in the past & sharks live in shallow seas -> the side of the <mask> used to be a shallow sea | cliff |
if fossils of sharks are found on the side of a cliff, then the side of the cliff used to be covered by water in the past & sharks live in shallow seas -> the side of the cliff <mask> to be a shallow sea | used |
if fossils of sharks are found on the side of a cliff, then the side of the cliff used to be covered by water in the past & sharks live in shallow seas -> the side of the cliff used to be a <mask> sea | shallow |
if fossils of sharks are found on the side of a cliff, then the side of the cliff used to be covered by water in the past & sharks live in shallow seas -> the side of the cliff used to be a shallow <mask> | sea |
a scientist wants to investigate the environmental changes from ancient time to now & investigating requires gathering information -> the <mask> has to gather information of ancient environment | scientist |
a scientist wants to investigate the environmental changes from ancient time to now & investigating requires gathering information -> the scientist has to <mask> information of ancient environment | gather |
a scientist wants to investigate the environmental changes from ancient time to now & investigating requires gathering information -> the scientist has to gather <mask> of ancient environment | information |
a scientist wants to investigate the environmental changes from ancient time to now & investigating requires gathering information -> the scientist has to gather information of <mask> environment | ancient |
a scientist wants to investigate the environmental changes from ancient time to now & investigating requires gathering information -> the scientist has to gather information of ancient <mask> | environment |
fossils can be used as evidence for the ancient environment & evidence is a kind of information -> <mask> is a kind of information on ancient environment | fossils |
fossils can be used as evidence for the ancient environment & evidence is a kind of information -> fossils is a <mask> of information on ancient environment | kind |
fossils can be used as evidence for the ancient environment & evidence is a kind of information -> fossils is a kind of <mask> on ancient environment | information |
fossils can be used as evidence for the ancient environment & evidence is a kind of information -> fossils is a kind of information on <mask> environment | ancient |
fossils can be used as evidence for the ancient environment & evidence is a kind of information -> fossils is a kind of information on ancient <mask> | environment |
the scientist has to gather information of ancient environment & fossils is a kind of information on ancient environment -> the <mask> can use fossils as information on ancient environment | scientist |
the scientist has to gather information of ancient environment & fossils is a kind of information on ancient environment -> the scientist can <mask> fossils as information on ancient environment | use |
the scientist has to gather information of ancient environment & fossils is a kind of information on ancient environment -> the scientist can use <mask> as information on ancient environment | fossils |
the scientist has to gather information of ancient environment & fossils is a kind of information on ancient environment -> the scientist can use fossils as <mask> on ancient environment | information |
the scientist has to gather information of ancient environment & fossils is a kind of information on ancient environment -> the scientist can use fossils as information on <mask> environment | ancient |
the scientist has to gather information of ancient environment & fossils is a kind of information on ancient environment -> the scientist can use fossils as information on ancient <mask> | environment |
limestone is a kind of sedimentary rock & nearly all fossils are found in sedimentary rock -> <mask> can be found in limestones | fossils |
limestone is a kind of sedimentary rock & nearly all fossils are found in sedimentary rock -> fossils can be <mask> in limestones | found |
limestone is a kind of sedimentary rock & nearly all fossils are found in sedimentary rock -> fossils can be found in <mask> | limestones |
fossils can be found in limestones & fossils can be used to study the history of organisms and environments on earth -> the <mask> in the limestone can be used to study the history of organisms and environments on earth | fossils |
fossils can be found in limestones & fossils can be used to study the history of organisms and environments on earth -> the fossils in the <mask> can be used to study the history of organisms and environments on earth | limestone |
fossils can be found in limestones & fossils can be used to study the history of organisms and environments on earth -> the fossils in the limestone can be <mask> to study the history of organisms and environments on earth | used |
fossils can be found in limestones & fossils can be used to study the history of organisms and environments on earth -> the fossils in the limestone can be used to <mask> the history of organisms and environments on earth | study |
fossils can be found in limestones & fossils can be used to study the history of organisms and environments on earth -> the fossils in the limestone can be used to study the <mask> of organisms and environments on earth | history |
fossils can be found in limestones & fossils can be used to study the history of organisms and environments on earth -> the fossils in the limestone can be used to study the history of <mask> and environments on earth | organisms |
fossils can be found in limestones & fossils can be used to study the history of organisms and environments on earth -> the fossils in the limestone can be used to study the history of organisms and <mask> on earth | environments |
fossils can be found in limestones & fossils can be used to study the history of organisms and environments on earth -> the fossils in the limestone can be used to study the history of organisms and environments on <mask> | earth |
the formation of diamonds requires intense pressure & the formation of diamonds requires extreme heat -> the <mask> of diamonds requires intense pressure and extreme heat | formation |
the formation of diamonds requires intense pressure & the formation of diamonds requires extreme heat -> the formation of <mask> requires intense pressure and extreme heat | diamonds |
the formation of diamonds requires intense pressure & the formation of diamonds requires extreme heat -> the formation of diamonds <mask> intense pressure and extreme heat | requires |
the formation of diamonds requires intense pressure & the formation of diamonds requires extreme heat -> the formation of diamonds requires intense <mask> and extreme heat | pressure |
the formation of diamonds requires intense pressure & the formation of diamonds requires extreme heat -> the formation of diamonds requires intense pressure and <mask> heat | extreme |
the formation of diamonds requires intense pressure & the formation of diamonds requires extreme heat -> the formation of diamonds requires intense pressure and extreme <mask> | heat |
the formation of diamonds requires intense pressure and extreme heat & the heat and pressure is extreme deep below earth's crust -> the <mask> of diamonds occurs beneath the the surface of the earth | formation |
the formation of diamonds requires intense pressure and extreme heat & the heat and pressure is extreme deep below earth's crust -> the formation of <mask> occurs beneath the the surface of the earth | diamonds |
the formation of diamonds requires intense pressure and extreme heat & the heat and pressure is extreme deep below earth's crust -> the formation of diamonds <mask> beneath the the surface of the earth | occurs |
the formation of diamonds requires intense pressure and extreme heat & the heat and pressure is extreme deep below earth's crust -> the formation of diamonds occurs beneath the the <mask> of the earth | surface |
the formation of diamonds requires intense pressure and extreme heat & the heat and pressure is extreme deep below earth's crust -> the formation of diamonds occurs beneath the the surface of the <mask> | earth |
evaporation is a kind of process & halite is formed by a body of salt water evaporating -> <mask> is formed by the process of evaporation of salt water | halite |
evaporation is a kind of process & halite is formed by a body of salt water evaporating -> halite is <mask> by the process of evaporation of salt water | formed |
evaporation is a kind of process & halite is formed by a body of salt water evaporating -> halite is formed by the <mask> of evaporation of salt water | process |
evaporation is a kind of process & halite is formed by a body of salt water evaporating -> halite is formed by the process of <mask> of salt water | evaporation |
evaporation is a kind of process & halite is formed by a body of salt water evaporating -> halite is formed by the process of evaporation of <mask> water | salt |
evaporation is a kind of process & halite is formed by a body of salt water evaporating -> halite is formed by the process of evaporation of salt <mask> | water |
the mineral sample is yellow & sulfur is yellow in color -> the <mask> sample is sulfur | mineral |
the mineral sample is yellow & sulfur is yellow in color -> the mineral <mask> is sulfur | sample |
the mineral sample is yellow & sulfur is yellow in color -> the mineral sample is <mask> | sulfur |
hardness is a measure of a mineral 's ability to resist scratching & a streak plate can be used for scratching a mineral -> a <mask> plate can be used to determine the hardness of a mineral | streak |
hardness is a measure of a mineral 's ability to resist scratching & a streak plate can be used for scratching a mineral -> a streak <mask> can be used to determine the hardness of a mineral | plate |
hardness is a measure of a mineral 's ability to resist scratching & a streak plate can be used for scratching a mineral -> a streak plate can be <mask> to determine the hardness of a mineral | used |
hardness is a measure of a mineral 's ability to resist scratching & a streak plate can be used for scratching a mineral -> a streak plate can be used to <mask> the hardness of a mineral | determine |
hardness is a measure of a mineral 's ability to resist scratching & a streak plate can be used for scratching a mineral -> a streak plate can be used to determine the <mask> of a mineral | hardness |
hardness is a measure of a mineral 's ability to resist scratching & a streak plate can be used for scratching a mineral -> a streak plate can be used to determine the hardness of a <mask> | mineral |
nearly all fossils are found in sedimentary rock & if something is found in something else, then that something else contains that something -> sedimentary <mask> can contain fossils | rocks |
nearly all fossils are found in sedimentary rock & if something is found in something else, then that something else contains that something -> sedimentary rocks can <mask> fossils | contain |
nearly all fossils are found in sedimentary rock & if something is found in something else, then that something else contains that something -> sedimentary rocks can contain <mask> | fossils |
sedimentary rocks can contain fossils & metamorphic rocks do not contain fossils -> sedimentary <mask> can contain fossils and metamorphic rocks do not contain fossils | rocks |
sedimentary rocks can contain fossils & metamorphic rocks do not contain fossils -> sedimentary rocks can <mask> fossils and metamorphic rocks do not contain fossils | contain |
sedimentary rocks can contain fossils & metamorphic rocks do not contain fossils -> sedimentary rocks can contain <mask> and metamorphic rocks do not contain fossils | fossils |
sedimentary rocks can contain fossils & metamorphic rocks do not contain fossils -> sedimentary rocks can contain fossils and metamorphic <mask> do not contain fossils | rocks |
sedimentary rocks can contain fossils & metamorphic rocks do not contain fossils -> sedimentary rocks can contain fossils and metamorphic rocks do not <mask> fossils | contain |
sedimentary rocks can contain fossils & metamorphic rocks do not contain fossils -> sedimentary rocks can contain fossils and metamorphic rocks do not contain <mask> | fossils |