Chapter 7.4 -science

Question 1

Clouds:

Answer 1

Clouds: a visible collection of small water droplets in the air high above the ground

Question 2

Fog:

Answer 2

Fog: a visible collection of small water droplets in the air at ground level

Question 3

Water cycle

Answer 3

Water cycle: the constant circulation of water on Earth, as it evaporates from the sea, condenses into clouds and precipitates.

Question 4

Gyres

Answer 4

Gyres: permanent circulating deep ocean currents that enclose huge areas between continents

Question 5

Greenhouse effect

Answer 5

Greenhouse effect: a natural effect of the Earth’s atmosphere trapping heat, which keeps the Earth’s temperature stable. The sun’s energy passes through the atmosphere and warms the Earth. Heat energy radiated from the Earth cannot pass through the atmosphere and is trapped

Question 6

Global warming:

Answer 6

Global warming: the observed rise in the average near-surface temperature of the Earth