1.1. Large areas of the tropical rainforest in Brazil and the forests and brushlands in Australia were destroyed by wild fires in 2019. The destruction had serious effects on the plants and animals in these ecosystems.

(i) Complete the word equation for photosynthesis.

[2]

(ii) Carbon dioxide is a limiting factor in the rate of photosynthesis.

Describe what is meant by the term limiting factor.

[2]

(iii) The combustion of trees by wild fires releases a large amount of carbon dioxide into the atmosphere.

Describe the impact of this increased release of carbon dioxide.

[4]

1.2. Suggest the impact of wild fires on the growth of plants.

Give reasons for your answers.