Rapid Review of the CAST

(Anwita) The energy sources that power the rock cycle are

• Earth's Interior

• Earth's Oceans

• The Sun

• Gravity

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(Sophia) Plants make glucose to feed themselves and release oxygen at the same time. However, plants need specific factors in order to create food and oxygen. Those factors are: _____

• carbon dioxide

• nitrogen

• water

• sunlight

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(Yvonne) The figure is an example of the law of

• Conservation of Mass

• Conservation of Momentum

• Conservation of Atoms

• Conservation of Molecules

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Diego V. The illustration shows the carbon cycle.

Which of the following conclusions can be drawn from the picture? Mark all that apply.

• Carbon in the atmosphere is present as CO₂

• CO₂ is essential in the processof photosynthesis.

• Fossil fuel factories release more CO₂ than animal respiration.

• Excessibe fossil fuels are harmful.

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Mythili: What is the relationship between available resources and population size?

• As resources increase, the populations of organisms decrease.

• Resource availability and population size are independent of each other in an ecosystem.

• As more resources become available, population size levels off.

• The more resources there are available, the larger a population can grow.

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Olivia. How is human nutrition different from plant nutrition?

• Plants produce their own food; humans consume the food produced by plants.

• Plant nutrition consists mainly of protein; human nutrition consists mainly of carbohydrates.

• Plants absorb their nutrients from the soil; humans get theirs from food.

• Plants cannot make their own food; humans can.

Asha. The “Ring of Fire” is the region where many volcanic eruptions and earthquakes occur. The picture shows that these generally occur at convergent plate boundaries. This means that plates are

• sliding past each other.

• spreading away from each other.

• crashing into each other.

• moving in a circle around each other.

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Noah. Which of the follwing statements is true about tectonic plates?

• Earthquakes cause them to move.

• They’re constantly moving.

• They don’t move for centuries at a time.

• There are fewer and fewer of them.

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Anthony.

If there is a large population of a certain species in a given area and suddenly their population begins to decline over time what conclusion can you draw about the possible cause of their decline?

Select all that apply.

• Their food source has experienced a sudden decline/ become harder to access.

• A species of predator has become more active in their area.

• Their source of water has diminished.

• Their habitat is being destroyed due to construction of a dam.

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Abhinav. Two of the same dinosaur fossils are found in South America and Africa in the same rock layer. Which of the following is a possible explanation for this?

• The two continents South America and Africa were once joined together.

• The two continents are very similar environmentally and two different species evolved very similarly.

• Purely coincidental.

• A small group of animals drifted away from the larger and created a new population.

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