Environmental Science Semester I Review 10/20/2020

The Gulf of Mexico dead zone is characterized by extremely low levels of ______ in the water.

• carbon dioxide

• dissolved salts

• oxygen

• nitrogen

What is the primary source of energy in a ecosystem?

• cellular respiration in plants

• energy from minerals in the soil

• fossil fuels

• solar energy

Which of the following organisms would be considered a producer?

• green plant

• rabbit

• jackal

• wild cat

Which of the following would be considered a primary consumer?

• green plant

• kite

• snake

• rabbit

What is the term used for the largest population that an environment can support at any given time?

• carrying capacity

• full level

• organism scope

• biotic factor

Which of the following pH measurements of rainwater would indicate acid precipitation?

• pH 6.0

• pH 4.1

• pH 7.3

• pH 9.6

What impact does deforestation have on the carbon cycle?

• increase the amount of CO₂ in the atmosphere

• decrease the amount of CO₂ in the atmosphere

• increase the amount of photosynthesis

• deforestation has no impact on the carbon cycle

___% of energy is passed on to the next level in the food chain/pyramid?

• 10%

• 20%

• 50%

• 90%

When carbon dioxide is absorbed by seawater, chemical reactions occur that reduce seawater pH, carbonate ion concentration, and saturation states of biologically important calcium carbonate minerals.

• Coral bleaching

• ocean acidification

• oceanography

• ocean aging

Herbivore

• an animal that feeds on plants

• an animal that feeds on both plants and animals

• an animal that feeds on animals