1.C

• Hydrosphere. One of the main components of Earth's interdependent physical systems is the hydrosphere. The hydrosphere is the sum of Earth's water, in the ocean, the ground, on the surface, and in the air. Approximately 71 percent of Earth's surface is covered in water.

2.B

• How does water get into the atmosphere? There are two main ways this happens: Heat from the Sun causes water to evaporate from oceans, lakes and streams. Evaporation occurs when liquid water on Earth's surface turns into water vapor in our atmosphere.

3.D

• Many processes work together to keep Earth's water moving in a cycle. There are five processes at work in the hydrologic cycle: condensation, precipitation, infiltration, runoff, and evapotranspiration.

4.A

• These particles are called condensation nuclei (singular: nucleus) when they assist in cloud formation. Just as water particles condense on grass to form dew, the. tiny airborne particles of water vapor condense into liquid or ice on the surfaces of dust particles in the air.

5.A

• Condensation is the process of water vapor turning back into liquid water, with the best example being those big, fluffy clouds floating over your head. And when the water droplets in clouds combine, they become heavy enough to form raindrops to rain down onto your head.

6.D

7.D

• Overall, this uptake of water at the roots, transport of water through plant tissues, and release of vapor by leaves is known as transpiration. Water also evaporates directly into the atmosphere from soil in the vicinity of the plant. ... Some definitions include evaporation from surface-water bodies, even the oceans.

8.B

• Perspiration, in most mammals, water given off by the intact skin, either as vapour by simple evaporation from the epidermis (insensible perspiration) or as sweat, a form of cooling in which liquid actively secreted from sweat glands evaporates from the body surface.

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Answer:

1. d
2. c
3. c
4. a
5. a
6. b
7. c
8. b

Explanation:

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