Answer: The correct option is A.
Biosphere and ecosystems
Explanation:
This is because Biosphere and ecosystems include non living things and biosphere is the layer of the ecosystem that consist of both living and non living things.
Ecosystem consist of a area which consist of living things like plants, animals e t.c interacting with the non living part of the environment I e physical part which include temperature, soil e.t.c.
Answer:
What is true of natural selection? A. Natural selection is a random process. B. Natural selection creates beneficial mutations. C. The only way to eliminate harmful mutations is through natural selection. D. Mutations occur at random; natural selection can preserve and distribute beneficial mutations.
The answer is D
Explanation:
natural selection can simply be explained as individuals that have specific inheritable traits will most likely tend to adapt and survive and as well reproduce at higher rates than others. mutation occurs when the nucleotide sequence of an organism changes. so natural selection can preserve and distribute beneficial mutations.
Answer: The answer is A
Explanation: Carbon IS abundant on the earth's surface.
Answer:
1.The Sun, Earth and Moon are aligned with the Earth in the middle and the Moon furthest away from the Sun.
2.The Moon only partially covers the Sun during the eclipse.The Moon only partially covers the Sun during the eclipse.
3.Moon in perigee orbit; Moon moves a direct line between Sun and Earth; Moon in new moon phase.
4.The Earth's umbra fits inside the Moon creating an illuminated ring known as a annular eclipse.
