OBJECTIVE FORESTRY

Detailed explanation-1: -This is because plants in forests discharge oxygen by the process of photosynthesis. It helps in supplying oxygen to animals for respiration. Plants take carbon dioxide, which is released by the animals.

Detailed explanation-2: -It’s true that plants give off oxygen. So it stands to reason that a heavily forested area might have a slightly higher localized of oxygen levels than some other areas. Here’s the deal: Earth’s atmosphere is about 21 percent oxygen.

Detailed explanation-3: -Trees release oxygen when they use energy from sunlight to make glucose from carbon dioxide and water. Like all plants, trees also use oxygen when they split glucose back down to release energy to power their metabolisms.