In some forests are cleared by burning .This produces carbon dioxide and ash. (a) Outline the environment effects of am increase in carbon dioxide in the atmosphere as a result of burning forests.

(b) The ash helps crops to grow bcuz it is rich in minerals, such as magnesium ions ,but it is deficient in nitrate ions.

Explain why nitrate ions and and magnesium ions are important for plants.
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B. The ash helps crops to grow because it is rich in minerals, such as magnesium ions, but it is deficient in nitrate ions.

Explanation:

After the forest is being burned, ash and carbon dioxide increase on the surface of the ground. It is good for the plant to grow because the plant uses carbon dioxide for photosynthesis, and its root absorbs energy from the ground where ash is very good for the plant to grow.