Which of the following is a renewable energy source?

• nuclear power

• natural gas

• solar power

• coal

What is pollution?

• The presence of harmful substances or pollutants in the environment.

• The absence of harmful substances or pollutants in the environment.

• The presence of harmless substances or pollutants in the environment.

• The presence of beneficial substances or pollutants in the environment.

How can we conserve natural resources?

• By using non-renewable resources

• By wasting as much as possible

• By reducing, reusing, and recycling materials, using energy-efficient appliances and vehicles, conserving water, planting trees, and practicing sustainable farming and fishing methods.

• By polluting the environment

What is climate change?

• Long-term changes in temperature, precipitation, wind patterns, and other aspects of the Earth's climate system caused by human activities.

• Short-term changes in temperature and weather patterns caused by natural processes.

• Changes in the Earth's climate system caused by volcanic activity.

• Fluctuations in temperature and precipitation due to changes in the Earth's orbit.

What is global warming?

• Global warming is a natural process that occurs when the Earth's atmosphere traps heat from the sun.

• Global warming is caused by the depletion of the ozone layer.

• Global warming is a myth created by scientists to receive more funding.

• Global warming is the long-term increase in Earth's average surface temperature due to human activities.

What is an ecosystem?

• A community of living organisms in conjunction with the nonliving components of their environment.

• A mathematical equation

• A type of computer software

• A type of musical instrument

What is a food chain?

• A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

• A food chain is a circular sequence of organisms where each organism eats the one before it.

• A food chain is a sequence of organisms that do not rely on each other for nutrients and energy.

• A food chain is a process where organisms produce their own food through photosynthesis.

Which of the following is a renewable energy source?

• coal

• solar power

• nuclear power

• natural gas

What is the main cause of air pollution?

• Excessive use of aerosol sprays

• Burning fossil fuels

• Release of harmful pollutants into the atmosphere

• Deforestation

Why is it important to protect the environment?

• To destroy the environment and disrupt ecological balance

• To deplete biodiversity and exhaust natural resources

• To worsen climate change and increase pollution

• To maintain ecological balance, preserve biodiversity, ensure sustainability of natural resources, mitigate climate change, reduce pollution, and improve quality of life.