Plants help people in several important ways, including filtering carbon dioxide into oxygen. They also act as food for both humans and animals and provide the basis for numerous types of medication.Know More
The numerous forest regions throughout the world provide the primary source of oxygen that all humans and animals need to breathe. The large collections of forest treetops collect the excess carbon dioxide deposits humans create during the respiratory process and use it during photosynthesis, processing breathable oxygen as a result. Plants also filter out other pollutants in the air. By storing and removing carbon and other pollutants, they also help to slow down human-caused climate changes. Excess carbon deposited into the atmosphere has a direct effect, as it can alter temperatures and weather patterns.
As a food source, plants are vital to all levels of the food chain. Humans need certain vitamins and minerals found only in plants. Livestock also eat plants as a primary food source. Without plants, animals such as cows, pigs and chickens would not be able to sustain a healthy diet and would eventually die out.
Many common medications use parts of specific plants as ingredients. Many homeopathic and herbal remedies rely on the healing powers of certain plants.Learn more about Botany
Plants make oxygen by using light energy to convert water and carbon dioxide into sugar and oxygen molecules. This occurs during the process of photosynthesis.Full Answer >
The National Snow and Ice Data Center explains that different species of plants adapt to cold weather in a variety of ways, such as growing in forms that shed snow readily or by retaining dead leaves to help insulate the plant. Unlike birds and other animals that can migrate to avoid harsh winter weather, plants must find a way to cope with the cold temperatures without leaving.Full Answer >
Plants are necessary because they are a primary food source and provide the oxygen that is vital to animals' and humans' existence. A majority of the calories that people consume comes from plants, and most meat comes from animals that eat plants. Plants are at the bottom of the food chain, and animals could not survive without them. Plants also release the oxygen that humans and animals breathe.Full Answer >
Plants are green because of a pigment called chlorophyll. Chlorophyll absorbs all colors of visible light except for green, which is reflected. Thus, the reflection of the green part of visible light is what causes plants to look green.Full Answer >