The Importance of Trees Answers

People benefit from trees by using their wood, paper, food, and medicines, and trees also provide oxygen, shade, and habitat. However, cutting or clearing too many trees can destroy habitats, reduce biodiversity, increase soil erosion, and release carbon dioxide.

Scientists can insert genes into plants so that the plants produce useful medical compounds such as vaccines or proteins used in drugs; these compounds can then be extracted from the plant material.

Trees compete with other plants for sunlight, water, and nutrients. In contrast, many insects depend on trees for food and shelter, while some insects pollinate trees or help control pests, creating mutualistic relationships.

Trees absorb carbon dioxide and release oxygen through photosynthesis. Their leaves also trap dust, pollen, and airborne pollutants, helping to clean the air.

Human use of trees provides resources such as wood for building and paper, and supports economies, but has also caused deforestation, loss of habitats, and increased carbon dioxide levels.

Trees absorb carbon dioxide and release oxygen through photosynthesis. Their leaves and branches can also trap airborne particles and help remove some pollutants, improving the quality of the air.

Trees and other plants may compete for sunlight, water, space, and nutrients, though they can also share an ecosystem. Insects often rely on trees for food and shelter; some pollinate flowers or help disperse seeds, while others feed on and damage trees.

Scientists can introduce genetic instructions into plants so the plants produce useful medicinal proteins or other compounds. The plants are grown, and the medicine is harvested and purified for use.