<span>The oceanic crust is part of the crust that is made fully out of basaltic rock and is several times thinner than the continental crust which is made out of granitic rock. Oceanic crust underlies Earth's oceans and is produced at divergent plate boundaries which are commonly referred to as mid-ocean ridges. As it grows from infilling magma and spreads away from the ridges, it will becomes cooler, thicker, and more dense, and will eventually sink into the mantle.</span>
The correct answer for the question is B. Fossil.
Fossils are remnants, traces of animals or plants, from the past ages that have been preserved. Fossils may be classified as cast and mold fossil, insect preserved in amber, petrified wood, compression fossil of a fern and pyritized ammonite.
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2. The endosymbiotic theory suggests that a eukaryotic cell is the result of one prokaryotic cell eating another.
<span>Plants take up carbon dioxide from the air and nutrients from the soil. This is an example of interactions between biosphere, atmosphere and geosphere. The answer is letter B. Bioshphere is the representation of any living organism on earth such as plants and animals. Even the tiniest organism that cannot be seen is considered a part of biosphere. Atmosphere is the blanket of gases that wraps around the earth. We may not see it but we can feel it. Geosphere is the land itself, the earth as a whole. From the core,to mantle and to crust. So in the example given, plants represent the biosphere, carbon dioxide form air represents the atmosphere and soil represents geosphere.</span>
