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Unit 2 Formative 2 Cremeans

Authored by Trevor Cremeans

Science

10th Grade

Used 20+ times

Unit 2 Formative 2 Cremeans
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Phytoplankton are plant-like microscopic organisms that float in bodies of water such as the ocean. They take in Carbon Dioxide during the process of photosynthesis. What would most likely happen if the population of phytoplankton was destroyed?

Sea temperatures would decrease

Greenhouse gases would increase

Atmospheric oxygen would increase

Sea levels would drastically decrease

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following processes is part of the carbon cycle?

Decomposers put carbon into the soil by breaking down organic material

Factories remove carbon from the atmosphere by burning materials

Plants put carbon back into the atmosphere through the process of photosynthesis

Animals remove carbon from the atmosphere through the process of respiration

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Nitrogen is a nutrient needed by plants for growth. Nitrogen is naturally cycled into the soil where it is rapidly absorbed by plants. What would a farmer most likely do to replenish Nitrogen that was depleted from the soil?

Use water that is enhanced with phosphates

Add fertilizer to the soil to provide a source of nitrogen

Use genetically altered crops that fix their own nitrogen

Add bacteria to the soil in order for the crop to grow stronger roots

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to the amount of energy available to organisms when moving from trophic level 1 (producers) to trophic level 2 (primary consumers)

The energy decreases by approximately 90%

The energy increases by approximately 90%

The energy decreases by approximately 10%

The energy increases by approximately 10%

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which mechanism helps carbon to cycle from the atmosphere to living organisms?

tissue decomposition

cellular respiration

photosynthesis

transpiration

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Organisms from which niche contain the greatest amount of energy?

Producers

Primary consumers

Secondary consumers

Decomposers

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A plant gets the energy it needs from the Sun. The plant uses about 10% of the energy to carry on its life functions. The plant transfers approximately 10% of the energy to the consumers in the food chain. What happens to most of the remainder of the energy?

It is reabsorbed by the Sun

It is recycled by decomposers

It is stored in soil for later use

It is released into the ecosystem as heat

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