Answer:
because they were originally long period comets whose orbits were perturbed by the gravity of the giant planets and directed into the inner solarsystem
Answer:
<em>The Moon lacks an atmosphere, and the small amount of water that is present is "buried" in the polar areas. Finally, there is no life on the Moon. The major factor which does change the Moon's surface is the impact of meteoroids, forming craters. ... The surface of the Moon is very old, compared to the Earth.</em>
Explanation:
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Answer:
1) a 2)b
Explanation:
reasons
1) Once carbon dioxide dissolves in water, it reacts with water molecules to form carbonic acid.
2) the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.
Answer:
Scientists believe that fitness is not only the ability to have physical fitness but it also refers to the adaptations that make an organism survive in its environment.
According to biological studies, biologists believe that the ability of an organism to survive in a particular area and to pass on its characteristics to its offspring is fitness.
The health scientists define fitness as the ability of an individual to be physically fit and to move without pain.
The scientists which study psychology believe that fitness is the well functioning of a person;s body as well as his/her mind.
The answer is D. This is because of the nitrogen compounds that are in it.