Unit Test — Unit test

Question 1

Sydney drew a flow chart to illustrate the nitrogen cycle.

Revolt · Accepted Answer

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

Question 2

Which describes the two ways that energy is measured?

Revolt · Accepted Answer

in wavelength and in temperature

Question 3

Which statement best describes wavelengths of sunlight that are longer than 700 nanometers?

Revolt · Accepted Answer

These wavelengths form the infrared part of the spectrum.

Question 4

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

Revolt · Accepted Answer

The plants undergo transpiration.

Question 5

Which phrase describes one main feature of the atmosphere?

Revolt · Accepted Answer

protects Earth’s surface

Question 6

The diagram illustrates the water cycle.

Revolt · Accepted Answer

Y

Question 7

Which organisms release carbon dioxide as waste?

Revolt · Accepted Answer

consumers and decomposers

Question 8

Which correctly list the three gases that each make up less than 1 percent of Earth’s atmosphere?

Revolt · Accepted Answer

argon, water vapor, carbon dioxide

Question 9

Which correctly lists the three methods of heat transfer?

Revolt · Accepted Answer

conduction, convection, radiation

Question 10

Which phrase defines altitude?

Revolt · Accepted Answer

the height of a given point above sea level

Unit Test — Unit test Answers