SG - Unit 5

Front

What is the major reason for the increase of greenhouse gases?

Back

The increase of greenhouse gases is primarily due to human activities such as burning fossil fuels, agricultural practices (like methane production by cattle), and other factors that contribute to environmental changes.

Front

True or False: Developers must sometimes build new wetlands to replace those they destroy.

Back

True. Wetlands are valuable ecosystems, and regulations often require the creation of new wetlands to compensate for those that are lost.

Front

True or False: The availability of natural resources helps determine a country's wealth and power.

Back

True. Countries with abundant natural resources often have greater economic power and influence.

Front

What percentage of Earth's surface is covered by water?

Back

Approximately 71% of Earth's surface is covered by water.

Front

True or False: The oceans help regulate climate and clean up pollutants.

Back

True. Oceans play a crucial role in climate regulation and the absorption of pollutants.

Front

Define greenhouse gases.

Back

Greenhouse gases are gases in Earth's atmosphere that trap heat, including carbon dioxide, methane, nitrous oxide, and water vapor.

Front

What is the significance of wetlands in ecosystems?

Back

Wetlands provide critical habitats for wildlife, help filter pollutants, and act as natural buffers against flooding.

Front

Explain the concept of climate regulation by oceans.

Back

Oceans absorb heat from the sun, distribute it around the planet, and influence weather patterns, thus regulating the Earth's climate.

Front

What are fossil fuels?

Back

Fossil fuels are natural substances formed from the remains of ancient plants and animals, primarily consisting of coal, oil, and natural gas.

Front

What is the role of algae in the ocean ecosystem?

Back

Algae are primary producers in the ocean, providing oxygen and serving as a food source for various marine organisms.