Answer: seafloor spreading and subduction magmatism
Explanation: Continental crust are termed as the crust destroyed by plate tectonic process mostly.Continental crust usually lies above sea level and because of this existence of land life to evolve from marine life possible.
Seafloor spreading is a type of process in which tectonic plate of Earth's lithosphere separate from one another. Subduction is also a process related with continental crust that occurs when tectonic plates collide with each other rather than getting apart.
The answer is comet. the paragraph explains comet best
An ecological deficit occurs when the Footprint of a population exceeds the biocapacity of the area available to that population. Conversely, an ecological reserve exists when the biocapacity of a region exceeds its population's Footprint. ... The Ecological Footprint is usually measured in global hectares.
Ecological reserves are areas selected to preserve representative and special natural ecosystems, plant and animal species, features and phenomena. Scientific research and educational purposes are the principal uses of ecological reserves.
After a thorough research, there exists a question that has the following questions.
<span>A. outdated
B. imaginative
C. non-testable
D. unacceptable
</span>
So, the correct answer is (C) non-testable. The reason why it is non-testable because these are considered theories of the solar system in which non of us exists before it was created.
