Which would be the most credible source for your evidence .

What percentage of the earth's water is available for use by living things?

Afarmer began a new method of reducing grain spills. this reduced the number of mice on the farm. the number of snakes in the surrounding area decreased at the same time. the snakes depended on the mice that lived in the field. what’s the likely reason the snake population decreased? a. the number of snake predators increased. b. the number of mice increased. c. the number of mice decreased. d. the pesticides affected the snakes. e. a new breed of mice moved into the field.

Which of the following sections on the sat presents the questions in order of difficulty, from easiest to hardest, within each question type? select all that apply. math test writing and language test reading test