The present-day tilt of earth's axis of rotation is 23.5. What would be the result of more tilt?

The present-day tilt of earth's axis of rotation is $23.5^{\circ}$ degrees. What would be the result of more tilt, as shown here?

A. high latitudes would receive more direct sunlight, causing warmer summer

B. a decrease in glacial activity

C. an increase in the effects of the seasons

D. all of these

Explain how the tilt of Earth's axis and Earth's movements cause seasons.

With the Moon in this position, which area will experience high tide?

A. 1

B. 2

C. 3

D. 1 and 3

E. 2 and 4

What is caused by the tilt of Earth's rotational axis? A. Earth's orbit B. Earth's seasons C. Earth's revolution D. Earth's rotation

Which among the following statements regarding the discovery of DNA is true?

How deep would the affects of this wave likely reach?

A. only on the surface

B. 1

C. 2

D. 3

E. much deeper than 3

The amount of solar heating can increase from:

A. a decrease in sunspot activity and energy output from the Sun

B. a decrease in snow and ice cover on Earth's surface

C. a decrease in the amount of greenhouse gases

D. a huge volcanic eruption that adds ash and dust to the atmosphere

What does a terminal moraine represent?

A. the end of a polished and scratched segment of bedrock

B. the sharp ends of a jagged ridge formed by glaciers

C. the end of an ice sheet that is flaating in the sea

D. a pile of sediment deposited at the end of the glacier

E. the final time that two glaciers come together

What is permafrost? How does permafrost affect biotic factors in the tundra?

What is permafrost?______________________________

What carved this U-shaped valley?

A. a rapidly downcutting river

B. a slowly downcutting river

C. wind

D. glacier

The margins of glaciers are usually darker than the interior primarily because:

A. shearing causes the ice to expel air and become darker

B. glaciers are transparent so the underlying bedrock is visible

C. the sides are moving faster than the interior of the glacier

D. the sides have a higher concentration of rocks and other debris

E. all of these

What is the feature numbered 2 in the upper left part of this figure?

A. cirque

B. U-shaped valley

C. lateral moraine

D. terminal moraine