Earth & Space Unit 4 Final Exam Quizs

What is biodiversity?

• The variety of life in a particular habitat or ecosystem.

• The total number of species in the world.

• The genetic variation within a species.

• The distribution of species across different regions.

What is the impact of deforestation on the environment?

• It leads to loss of biodiversity, disruption of water cycles, and increased carbon emissions.

• It promotes agricultural growth and increases land availability.

• It has no significant impact on the environment.

• It reduces soil erosion and improves air quality.

Why are hybrid vehicles more energy efficient than regular vehicles?

• They combine gasoline and electric power.

• They have larger fuel tanks.

• They are lighter than regular vehicles.

• They use only electric power.

What must occur before alternative energy sources can replace fossil fuels?

• Increased fossil fuel production

• Advancements in alternative energy technologies

• Higher energy consumption

• Government regulations on fossil fuels

Define fossil fuels.

• Natural substances formed from the remains of ancient organisms, used as energy sources.

• Synthetic materials created for industrial use.

• Renewable energy sources derived from wind and solar power.

• Minerals extracted from the earth for construction purposes.

How does solar energy generate electricity?

• Solar panels convert sunlight directly into electrical energy using photovoltaic cells.

• Solar panels store sunlight for later use as electricity.

• Solar panels reflect sunlight to generate heat energy.

• Solar panels convert wind energy into electrical energy.

What is climate change?

• Long-term alteration of temperature and typical weather patterns in a place.

• Short-term changes in weather conditions.

• Increase in the number of natural disasters.

• Changes in the Earth's orbit affecting seasons.

How do wind turbines generate electricity?

• They convert solar energy into electrical energy.

• They convert the kinetic energy of wind into mechanical energy, which is then transformed into electrical energy.

• They use fossil fuels to generate electricity.

• They rely on geothermal energy to produce electricity.

Why is water conservation important for the environment?

• It helps preserve freshwater resources and supports healthy ecosystems.

• It increases the amount of water available for industrial use.

• It reduces the cost of water treatment facilities.

• It allows for more recreational water activities.

Define renewable energy.

• Energy from sources that are naturally replenished, such as solar or wind.

• Energy that is consumed faster than it can be replenished.

• Energy derived from fossil fuels like coal and oil.

• Energy that is generated from nuclear reactions.