The Moon is thought to have come from the Earth. In 1975, the giant impact hypothesis was put forward. This suggests that the Earth was hit by a planet about the size of Mars around the time of the formation of the solar system approximately 4.5 billion years ago, and the impact caused part of the outer layer of the Earth to spin off and form what is now the Moon.
Answer:
C
Explanation:
Dead zones are are areas of low oxygen or hypoxia. They are usually caused by nutrient pollution that leads to algae blooms, but there are other factors that contribute
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The answer is D) the organ system.
Answer:
Contagious is a method in which a bloodborne pathogen may be transmitted
Explanation:
Contagious are contacted as a result of transmission through blood contact, serum, sweat among others where diseases are said to be infectious
The horsehoe crab because it was one of the first animals to ever live on earth
