1. More than half of the world’s species of plants and animals are found in the rainforests. For this reason, we tend to think of them as very fertile areas and they have been called the “jewels of the Earth”. Despite the rapid vegetation growth and abundant animal species, the soil is rather poor.

Describe why this is so and describe the problems that this may cause. From your knowledge of photosynthesis and cellular respiration, can you explain why this is so?

2. Describe at least two ways in which we could stop cellular respiration.