Savvas Chapter 3 Earth's Environmental Systems Study Guide

What are wind and water erosion NOT likely to affect?

• Beaches
• Rocks
• Currents
• soil

The ozone layer is located in the:

• stratosphere
• mesosphere
• troposphere
• ionosphere

Without the greenhouse effect, Earth's atmosphere would be __________ to support life.

• too hot

• too wet

• too dry

• too cold

What part of the Earth includes all areas where organisms can obtain the energy they need?

• Biosphere
• Atmosphere
• Geosphere
• Hydrosphere

Which of the following includes all of the water on or near Earth's surface?

• Biosphere
• Atmosphere
• Hydrosphere
• Geosphere

If 50 molecules of carbon dioxide are detected in a volume of air containing 1 million molecules, the carbon dioxide reading would be:

• 50 parts per million
• 5 parts per million
• 500 parts per million
• 50 parts per billion

The Earth's atmosphere is made up of mostly which 2 gases?

• Water & Oxygen
• Carbon Dioxide & Oxygen
• Nitrogen & Carbon Dioxide
• Nitrogen & Oxygen

Air pressure is lowest in which of the following places:

• Middle of a mountain
• Bottom of a mountain
• Top of a mountain
• Equal at all places

As water is changing from a solid to a liquid to a gas, is the substance gaining energy or losing energy?

• Gaining
• Losing
• Neither
• Both

The molecules of a substance are generally farthest apart in which phase of matter?

• Solid
• Liquid
• Gas
• Plasma