Which of the following factors determines how harmful an introduced chemical will be on the environment? a. type of chemical b. concentration c. weather conditions d. all of the above select the best answer from the choices provided.

Option (D)

Explanation:

Chemicals are usually defined as those substances that are comprised of matters and have a certain chemical composition. Almost all living and non-living things are made up of chemicals. They are very extensively used in all the products. These chemicals are both helpful as well as harmful to different life forms.

These chemicals can be harmful to an environment if the chemical is comprised of toxic elements and in greater amount. For example, acids are comprised of harmful chemicals that can cause damages in an environment. If the weather condition in an area is very drastic then these chemicals can mix up with the water and thereby causes a lot of damages.

Thus, the correct answer is option (D).

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above

after a the power stroke, adp is released, but the cross-bridge formed is still in place. atp then binds to myosin, moving the myosin to its high-energy state, releasing the myosin head from the actin active site.