Chapter 13 Earth systems

1. Which two systems interact when a river causes erosion?

• a) the biosphere and the atmosphere

• a) the biosphere and the geosphere

• a) the hydrosphere and the biosphere

• a) the hydrosphere and the geosphere

1. Which of the following describes carbon dioxide in the atmosphere?

• a) industrial runoff

• a) greenhouse gas

• a) fossil fuel

• a) dissolved phosphate

1. A biosphere is the part of Earth that supports _______.

• a) water

• a) life

• a) minerals

• a) air

1. The air that surrounds Earth is called __________.

• a) the geosphere

• a) the hydrosphere

• a) the biosphere

• a) the atmosphere

1. Water returns to the atmosphere by the process of __________.

• a) condensation

• a) evaporation

• a) radiation

• a) precipitation

1. Surface processes that work to break down rock are called__________.

• a) weathering

• a) subduction

• a) compaction

• a) cementation

1. One possible result of extra carbon dioxide in the atmosphere is __________.

• a) a decrease in the amount of water on Earth

• a) an increase in the number of carnivores on Earth

• a) a rise in average temperatures on Earth

• a) a decrease in the amount of nitrogen in the soil

1. Which is an interaction between the biosphere and the geosphere?

• a) Rising sea levels change habitats

• a) Organisms contribute to weathering and erosion.

• a) Plants use oxygen and carbon dioxide during photosynthesis

• a) Volcanic eruptions eject gas and debris into the air.

1. Phosphates are formed when phosphorus reacts with

• a) carbon

• a) oxygen

• a) nitrogen

• a) hydrogen

1. Phosphates in living things can return to soil during

• a) respiration

• a) decomposition

• a) photosynthesis

• a) condensation