Answers MO-Earth and Space Science ACycles of Matter

Cycles of Matter — Unit test Answers

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Which information does a compass rose provide on a map?

direction

distance

features

symbols

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Sydney drew a flow chart to illustrate the nitrogen cycle.

X: Producers undergo photosynthesis.Y: Nitrogen compounds are released into the air.

X: Nitrogen compounds are released into the air.Y: Producers undergo photosynthesis.

X: Free nitrogen is in the atmosphere.Y: Producers absorb nitrogen compounds through their roots.

X: Producers absorb nitrogen compounds through their roots.Y: Free nitrogen is in the atmosphere.

Which best explains why a thick tropical forest filled with large plants typically has a lot of water vapor in the air?

The plants undergo transpiration.

The plants undergo condensation.

The plants prevent water from evaporating.

The plants prevent water from becoming runoff.

Which parts of a map would be referenced to find a specific location at 95°E, 24°N?

map key

map scale

compass rose

lines of latitude and longitude

Topography maps are best used for which activity?

designing roads for a new town

sailing across one of the Great Lakes

estimating the number of trees in an area

determining the warmest beach to visit

Which displays Earth’s curved surface on a flat model?

globe

grid

meridian

projection

Which event is most likely if an index fossil is found in a layer at location 1, but the layer and index fossil are not found at location 2 nearby, which is known to be the same relative age?

The layer at location 2 is too old to contain fossils.

The locations were too close together.

The organism did not exist at location 2.

The layers at location 2 formed much earlier than those at location 1.

Which phrase describes faults?

cause gaps in the geologic record

cause rocks to break and move

are older than surrounding rocks

are igneous rocks that form beneath Earth’s surface

Which is a common type of map projection?

distorted

digital

curved-surface

equal-area

Which statement describes potassium-argon dating?

Potassium-40 decays into argon gas over time.

Argon breaks down into other elements and compounds.

Potassium-40 becomes stable when trapped in rocks.

Argon is unstable and will decay into potassium-40 over time.

The diagram illustrates radioactive decay.

Structure 1 is an unstable atom that turns into structure 2, a new atom.

Structure 1 is a stable element that breaks down into structure 2, an unstable element.

Structure 1 is a radioactive element that loses particles to create structure 2, released energy.

Structure 1 is a radioactive atom that decays into structure 2, half of the original unstable element.

Which statement describes one characteristic of index contour lines?

They appear thinner and lighter than other lines on a map.

They show regions where a difference in elevation exists.

They show the locations of roads and paths on the landscape.

They show ratios used to determine the actual distance on a map.

The image shows locations of fossils from different geologic periods in Virginia.Which association correctly links the time period with the location of the fossils?