Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to produce food in the form of glucose.

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

Transpiration is the process by which water moves through plants, from the roots to the leaves, and then evaporates into the atmosphere.

Solar energy is a renewable energy source that comes from the sun.

Decomposition is the process by which waste materials are broken down into simpler substances by microorganisms.

Natural gas is a non-renewable energy source that is formed from the remains of ancient plants and animals.

Sustainability is the process by which humans use natural resources in a way that does not harm the environment.

Using public transportation, recycling waste materials, and conserving water are all examples of sustainable practices.

Restoration is the process by which humans restore damaged ecosystems to their natural state.

Using disposable plastic products, wasting food, and driving a car instead of walking or biking are all examples of non-sustainable practices.

Conservation is the process by which humans protect natural resources from harm.

Protecting endangered species, creating national parks and wildlife refuges, and reducing pollution are all examples of conservation practices.

Preservation is the process by which humans preserve natural resources in their natural state.

Creating national parks and wildlife refuges is an example of a preservation practice.

Sustainability is the process by which humans reduce their impact on the environment.