Climate Change

Front

Climates are classified according to two major factors:

Back

precipitation and temperature

Front

What has caused repeating 100,000-year cycles of ice ages in the past? Options: an increase in sun spots, several major volcanic eruptions, changes in Earth's orbit and the tilt of its axis, continental drift.

Back

changes in Earth's orbit and the tilt of its axis

Front

Clues to ancient climates come from...
Options: ice cores, fossil tree rings, plant pollens, all of the above

Back

all of the above

Front

Global warming is known as the gradual increase in _________________ of the atmosphere.

Back

temperature

Front

The most abundant greenhouse gas in the atmosphere is ___________________.
Options: oxygen, nitrogen, carbon dioxide, argon

Back

carbon dioxide

Front

Earth's ozone layer is _____________________________.

Back

filters harmful ultraviolet radiation from the sun

Front

Increased carbon dioxide may cause global warming by trapping more ____________ in the atmosphere.

Back

heat

Front

The conditions in an area over a long period of time?

Back

Climate

Front

Is any amount of CO₂ in the atmosphere bad for our planet?

Back

False

Front

Changes from minute-to-minute, hour-to-hour, day-to-day

Back

Weather