ENR CDE Test 2015

What is ecology?

• The branch of science dealing with the complex relationships among living things and their environment

• The branch of science dealing with the complex relationships of nonliving organisms

• The branch of science dealing with only natural resources

• Complex network of living and nonliving organisms

What is an ecosystem?

• A complex network of living and non living organisms in which each organism may be affected by the others

• A complex relationship among living things and their environment

• A complex relationship among nonliving organisms

• Natural resources

What is known as the universal solvent?

• Gasoline

• Kerosene

• Any liquid

• Water

Decaying plant and animal matter produce…

• Chlorofluorocarbons

• Methane

• Nitrous oxide

• ozone

A gas that is poisonous that cant be removed from auto exhaust is…

• Carbon monoxide

• Hydrocarbons

• Nitrous oxides

• radon

Which of the following is not associated with photosynthesis?

• Carbon monoxide

• Oxygen

• Radon

• water

Air pollutants which adhere to precipitation and falls to the earth is called?

• Acid drainage

• Acid rain

• Leachate

• leaching

What is groundwater that is available for plant root absorption called? hygroscopic

• Capillary

• Free

• Gravitational

• hygroscopic

Which of the following is the smallest soil particle?

• Clay

• Gravel

• Sand

• Silt

Which of the following would not be a recommended practice to reduce or prevent wind and water erosion?

• Crop rotation

• Contour farming

• Liming the soil

• Strip cropping