Which THREE of the following are true statements about the water cycle

5005 Praxis Practice Test

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Question 1 of 5.

Which THREE of the following are true statements about the water cycle?

A. Clouds are formed when water vapor in the air changes into liquid water.

B. Rainfall results from a collision between two or more clouds in the atmosphere.

C. Some of the rain that falls to Earth becomes groundwater.

D. Some water returns to the atmosphere by evaporating through plant leaves.

Explanation: Clouds form from condensation of water vapor. Rain can fall from a single cloud; collision of clouds is not necessary. Rain can infiltrate the ground to become groundwater. Transpiration is the process where water evaporates from plant leaves.

Question 2 of 5.

The rotation of Earth around its axis is responsible for which of the following?

A. The force of gravity

B. The day and night cycle

C. The temperature differences between seasons

D. The movement of continents relative to one another

Explanation: The rotation of Earth on its axis causes the cycle of day and night as different parts of the Earth face towards or away from the Sun.

Question 3 of 5.

Which THREE of the following agricultural practices are most likely to have a negative impact on the environment?

A. Increasing the amount of fertilizer applied to a field to maximize crop yields

B. Providing a field with excessive amounts of water to maintain ground saturation

C. Applying nonselective herbicides to a field at the end of the growing season to eliminate weeds

D. Planting crops in a field with minimal disturbance of the surface soil to reduce soil erosion

Explanation: Excessive fertilizer can lead to nutrient runoff, causing water pollution. Excessive water can lead to soil erosion and water waste. Nonselective herbicides can harm beneficial organisms and biodiversity. Minimal disturbance planting is beneficial for soil health.

Question 4 of 5.

Which TWO of the following are powered most directly by the Sun's energy?

A. Surface currents in the ocean

B. Volcanic eruptions

C. Tectonic plate movements

D. Convection in the atmosphere

Explanation: Surface currents are driven by winds, which are caused by uneven heating of the Earth's surface by the Sun. Convection in the atmosphere is also directly driven by solar heating.

Question 5 of 5.

Natural gas-fired power plants are considered greenhouse gas emitters because the burning of natural gas produces which of the following?

A. Hydrogen

B. Radon

C. Carbon dioxide

D. Helium

Explanation: Burning natural gas (methane) produces carbon dioxide and water vapor. Carbon dioxide is a greenhouse gas.