Answer: The water in the earth is older than earth itself.The water inside earth came out as steam from volcanic vents and the clouds rained down water..Comets also contain lot of water ice.Early period of solar system large amount of comets and asteroids hit the earth They also brought lot of water.
Explanation:
Create the inverse DNA<span> or </span>RNA<span> strand. For example, the sequence "ATGC" is converted to "CGTA". Replace thymidine (T) by uracil (U). For example, the sequence "ATUGC" is converted to "AUUGC".</span>
On earth an object at rest has gravity acting on it
Mutualism because both animals benefit. The Elephant gets relived from the parasites that are on it and the bird gets food.
If a person is shot, and the bullet destroys the part of the brain called the medulla, which maintains basic life functions (heart rate, breathing), there is virtually no chance for surviving that injury
