Environmental Science Quiz

Which gas is primarily responsible for the greenhouse effect?

• Oxygen

• Nitrogen

• Carbon dioxide

• Hydrogen

The ozone layer is found in which layer of the atmosphere?

• Troposphere

• Mesosphere

• Thermosphere

• Stratosphere

Which of the following is the largest source of freshwater on Earth?

• Rivers

• Lakes

• Groundwater

• Glaciers and ice caps

Which of the following is not a non-renewable resource?

• Coal

• Petroleum

• Wind energy

• Natural gas

Biodiversity refers to:

• Different kinds of weather

• Variety of life forms on Earth

• Food chains in the forest

• Number of trees in a forest

Acid rain is mainly caused by emissions of:

• Carbon dioxide and methane

• Nitrogen and phosphorus

• Sulphur dioxide and nitrogen oxides

• Oxygen and ozone

Which of the following is an example of the 3Rs to save the environment?

• Reduce, Reuse, Recycle

• Remove, Replace, Relocate

• Read, Rebuild, Regrow

• Restore, Rebuild, Refurnish

BOD (Biochemical Oxygen Demand) is used to measure:

• Oxygen level in the atmosphere

• Sound pollution

• Water pollution

• Soil fertility

Which one of the following is a biotic component of an ecosystem?

• Temperature

• Fungi

• Water

• Light

The term "sustainable development" refers to:

• Unlimited use of resources

• Use of resources without considering future needs

• Development that meets present needs without compromising future generations

• Rapid industrial growth