Solar energy is a renewable energy source because it is derived from the sun, which is a constantly replenishing source of energy.

Wood is a sustainable material because it is a renewable resource that can be grown and harvested without depleting the Earth's resources.

Energy conservation is an example of a sustainable development practice because it reduces the demand for energy, which in turn reduces the environmental impact of energy production.

Carbon dioxide is a greenhouse gas because it traps heat in the Earth's atmosphere, contributing to global warming.

Human activities, such as the burning of fossil fuels, are a major cause of climate change because they release greenhouse gases into the Earth's atmosphere.

Wind energy is a renewable energy source that does not produce greenhouse gases because it does not involve the combustion of fossil fuels.

Deforestation is a major environmental impact because it releases carbon dioxide into the Earth's atmosphere, contributing to global warming.

Riding a bicycle is a sustainable transportation option because it does not produce greenhouse gases.

Water pollution is a major environmental impact because it can harm aquatic life, such as fish and plants.

Solar energy is a sustainable energy source that can be used to generate electricity because it does not involve the combustion of fossil fuels.

Air pollution is a major environmental impact because it can harm human health, such as by causing respiratory problems and heart disease.

Cotton is a sustainable material that can be used to make clothing because it is a renewable resource that can be grown and harvested without depleting the Earth's resources.

Mining is a major environmental impact because it can cause land degradation, such as by creating open pits and destroying forests.

Geothermal energy is a sustainable energy source that can be used to heat homes because it does not involve the combustion of fossil fuels.

Agriculture is a major environmental impact because it can cause deforestation, such as by clearing forests to make way for farmland.