Answer and Explanation:
We can consider the city and the forest as two terrestrial ecosystems. In these two ecosystems, we can consider humans and plants as biotic components. Since the entire biological community is considered to be biotic environments, that is, it lives from a place. As abiotic components we can consider sunlight and soil. This is because the abiotic components are everything that has no life.
Following the same reasoning, we can consider fish and water as the biotic and abiotic component of the aquatic ecosystem.
A 2014 Reuters analysis found that, before 1971, water reached flood levels no more than five days every year (on average) in several U.S. east coast cities. Since 2001, however, that number has risen to 20 days or more (on average).
The answer is that "since they do not interact with the electromagnetic force, they do not feel friction or drag and hence do not contract with the rest of the protogalactic cloud." WIMPs (Weakly-Interacting Massive Particles) are hypothetically constituted to dark matter. It is in their nature to be less interactive, so they are scattered throughout galactic halos and not focused into the galaxy's disk.
Polar stratospheric clouds<span>. </span>Polar stratospheric clouds<span> (PSCs) play a central role in the formation of the </span>ozone<span> hole in the Antarctic and Arctic. ... These reactions lead to the production of free radicals of chlorine in the </span>stratosphere<span> which directly destroy</span>ozone<span> molecules.</span>
