Leaves can adjust the climate and purify the environment; What are the reasons and examples of providing food and energy for human beings?

Plants absorb carbon dioxide through photosynthesis, and forests prevent wind and fix sand.

It is not only plants that regulate the climate, but also the improvement of the environment enriches species, and then the overall impact on the climate should be considered.

All energy comes from solar energy, plants are producers, plants fix solar energy, and then energy spreads through the food chain. 2. Purify the air and absorb harmful gases. In starch body, stable compound starch was synthesized. Turn solar energy into active chemical energy, and then finally form stable chemical energy to fix energy for the biosphere. Animals store these energy substances in fruits, seeds, fleshy leaves, bulbs or fleshy roots. Through food chain transmission, people eat these items, and after digestion and reception, these energetic substances are transformed into their own material energy.

On the green leaves, misty water vapor is discharged from time to time. The evaporation of gaseous water into the atmosphere is called leaf transpiration. Plants form 65,438+0 kg of dry matter, which requires transpiration ..., 2, photosynthesis, 1. Breathing can purify the air and reduce the carbon dioxide content in the air to provide food, not to mention that we eat vegetables and animals eat grass. Photosynthesis of animals and plants is also the beginning of food chain. 1, regulating climate and purifying environment: transpiration secretes bactericidal substances and absorbs harmful gases.

Provide food and energy for human beings: photosynthesis, zero, purify the air and absorb harmful gases. ,0,