1° Science Exam B3P2

What causes acid rain?

• • Excessive sunlight

• • Pollutants in the air and water

• • Natural disasters

• High temperatures

Which of the following is NOT a form of acid rain?

• • Rain

• • Sleet

• • Dew

• Fog

What is dry deposition?

• • Acid rain that forms as snow

• • Pollutants that mix with water to form acids

• • Gases and dust particles that touch surfaces

• Acid rain that forms as sleet

Which gases mix with water to form acids in acid rain?

• • Carbon dioxide and methane

• • Oxygen and nitrogen

• • Sulfur dioxide and nitric oxide

• Hydrogen and helium

How does acid rain affect forests?

• • By increasing soil nutrients

• • By removing the wax from tree needles and leaves

• • By making trees grow faster

• By providing essential nutrients to the soil

What is one impact of acid rain on aquatic environments?

• • Increasing oxygen levels in water

• • Lowering the pH in lakes and rivers

• • Making water more alkaline

• ) Increasing the temperature of water bodies

What are some efforts to reduce acid rain?

• • Increasing the use of fossil fuels

• • Developing the use of renewable sources

• • Building more factories

• Cutting down more trees

What is external respiration?

• • The exchange of gases within cells

• • The process of digestion in animals

• • Breathing: getting oxygen from the environment and letting out carbon dioxide

• The process of photosynthesis in plants

Which system carries out gas exchange in animals?

• • Digestive system

• • Circulatory system

• • Respiratory system

• Nervous system

Which type of respiration involves gas exchange through the skin?

• • Branchial respiration

• • Cutaneous respiration

• • Pulmonary respiration

• Cellular respiration