Welcome to the agro learning challenge season 20.

Observations and suggestions:

There are little clarity in attending to task 1. Clear divergence from question asked at various points. Dwelling more on how agricultural productivity impacts climate change...

how agricultural productivity is affected by climate change

For task 2, you seem not to be detailed in your explaination. For example. Incidences of flooding causes leaching, soil erosion, crop lodging, and outright damages of crops.
Good knowledge on task 3.
For your task 4, I seem to defer from this statement that "High water frequency means flood and drought disasters" .
You need to curtail words multiplications. This writing style was observed in all your representations.

an increase in temperature, a rise in temperature...

Generally, it was good reading from you, nice presentation.