ES2 Final Exam

Convection currents occur because

• cold air is less dense than warm air.

• warm air rises and cold air sinks.

• warm air is heavier than cold air.

• cold air rises and warm air sinks.

Weather is

• the changes that occur in cloud formations from day to day.
• the amount of rain or snow that falls in a day.
• convection and conduction that occurs within air masses.
• the condition of Earth’s atmosphere at a given time and place.

As you move TOWARD the center of a low pressure system, the atmospheric pressure at the surface _______________.

• increases.

• decreases.

• stays the same.

• cools down.

Which of the following statements about air is true?

• Air cannot be compressed.

• Air does not have mass.

• Air is a mixture of gases including oxygen and nitrogen.

• Air gets all its heat energy from the ground.

__________ are lines that connect points of equal air pressure.

• Isotherms
• Fronts
• Troughs
• Isobars

Days are hotter at the equator than at the poles because

• the equator is the thickest part of Earth.
• more direct light shines on the equator.
• more indirect light shines on the equator.
• the equator is closer to the Sun.

The solar angle is a term that refers to the

• how long it takes light to reach Earth from the Sun.
• the distance from one beam of light to another.
• the amount of solar energy that falls on different parts of Earth’s surface.
• angle at which sunlight strikes Earth’s surface.

What is the typical direction of surface wind flow around a high pressure system in the Northern Hemisphere?

• counter-clockwise and spiraling outward

• counter-clockwise and spiraling inward

• clockwise and spiraling outward

• clockwise and spiraling inward

When discussing air pressure, which of the following statements is true?

• Increased pressure = increased volume.
• Increased pressure = increased density.
• Increased pressure = more cloud cover.
• Increased pressure = increased precipitation.

The reason why it is so hot near the equator is ___.

• the sun heats the lava under that area.
• the area near the equator gets lots of direct sunlight.
• the area near the equator gets lots of indirect sunlight.
• the light near that area is less intense.