Environmental Science Quiz

Which of the following best defines environment?

• Only the air surrounding an organism

• The complex of social or cultural conditions affecting a community

• The circumstances or conditions that surround an organism

• Both B and C

What is Environmental Science mainly concerned with?

• Only natural sciences

• Only social sciences

• A mission-oriented, interdisciplinary study of the environment

• Only humanities

Which of the following is NOT part of the mission of environmental engineers?

• Improving recycling

• Air pollution control

• Designing war weapons

• Waste disposal

Which statement best describes the Conservation of Matter?

• Matter is constantly created

• Matter disappears after use

• Matter is neither created nor destroyed

• Matter becomes energy and vanishes

Which four elements make up more than 96% of most living organisms?

• Hydrogen, Helium, Lithium, Carbon

• Oxygen, Nitrogen, Carbon, Hydrogen

• Oxygen, Nitrogen, Sulfur, Phosphorus

• Hydrogen, Oxygen, Sulfur, Helium

Which statement about ions is correct?

• Ions have no charge

• Cations are negatively charged

• Anions lose electrons

• Anions gain electrons and become negatively charged

Which of these is a polymer of nucleotides?

• Proteins

• Lipids

• RNA

• Carbohydrates

Which best describes an enzyme?

• A simple sugar

• A molecular catalyst for biochemical reactions

• A type of nucleic acid

• A type of lipid

Which law states that energy cannot be created or destroyed?

• Law of Conservation of Matter

• First Law of Thermodynamics

• Second Law of Thermodynamics

• Law of Entropy

What is chemosynthesis?

• Using sunlight to make energy

• Using heat from the sun to synthesize compounds

• Using chemical bonds of inorganic elements to produce organic molecules

• Using solar radiation only in shallow ecosystems