
In academic writing task 1, you have to write at least 150 words in response to a graph, table, chart, or process. It is recommended that you should not spend more than 20 minutes on Task 1 because writing task 2 carries more band score and requires writing at least 250 words.
The best way to academic writing task 1
You can find a variety of samples of academic writing task 1 in this post.