Answer:
Protecting the environment is important because of... (insert reasons here).
Or, The environment needs to be protected because of (insert reasons here).
Step-by-step explanation:
The thesis statement should provide a basis for your essay to be written upon. There should be reasons included in the thesis statement, and each reason should make up a portion of the essay.
For example, if you had to write an essay with 4 paragraphs, or one introduction paragraph, two body paragraphs, and one conclusion paragraph, you would need to include two reasons in your thesis statement.