Unit Test — Unit test Answers

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Which example describes biotic factors interacting with the environment?

sunlight shining through a window

oxygen circulating in the atmosphere

rain forming puddles on the sidewalk

butterflies resting on the flower of a plant

A volcanic eruption releasing rock, ash, and dust particles into the air is an example of which interaction?

the biosphere interacting with the geosphere

the geosphere interacting with the atmosphere

the geosphere interacting with the hydrosphere

the hydrosphere interacting with the atmosphere

Which information can be determined using half-life?

age of material

type of particle released

percentage of rock that has aged

number of radioactive particles left

Study the diagram of the geologic time scale.Which method is most likely used to identify what happened before the start of the Paleozoic era?

Scientists study fossils from the Jurassic period.

Scientists observe index fossil records of the Mesozoic era.

Scientists examine fossil evidence during the Precambrian time.

Scientists explore the emergence of mammals and humans in the Cenozoic era.

How might an entire insect be preserved?

Soft and hard tissues turn the insect into rock.

Tree sap flows over the insect and hardens.

Sediment accumulates over the insect and hardens.

Carbon from the decaying insect leaves a print on a rock.

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