Answer:
B. Bacteria are introduced to break down hydrocarbons in an oil spill.
Force can cause an object to change its speed or direction. A force causes <span>acceleration, as given by Newton's equation F=ma, where f is force, m is mass,
</span>
<h2>Answer with Explanation </h2>
The elements that are required for the human body are in fixed percentages Whatever the weight of a person the percentage remains the same. Like 70-90% water is present in the human body whatever the weight of a person but the percentage of water remains the same in the body. There are six main elements present in the body which are basic and necessary for the human body are oxygen, nitrogen, carbon, phosphorus, calcium, and hydrogen.
