Enzymes bind with chemical reactants called substrates
Answer:
crude oil (petroleum) is the only natural liquid fossil fuel
Answer:
You need to use the scientific method and <u><em>knowledge of the environment </em></u>in order to work as an environmental scientist.
Explanation:
An environmental scientist should have an excellent knowledge about the systems of the environments and scientific methods. If a scientist is thorough about his understandings of the environment, he will be able to recognize any changes in the environment immediately and formulate the necessary reasons for the changes by using the scientific method of research. By using the scientific method of research, a scientist is able to learn about the various phenomenon occurring in the environment.
A keystone species helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether.
