Mutualism.
Hope this helps (:
-Payshence xoxo
The answer is : b. Theoretically, noise pollution could be so great that it could kill a person. Noise pollution affect our sense of hearing... leading to hearing loss. It also disturb our sleep which could lead to fatigue. Long-term noise above a certain level can have a harmful influence on our health. Research shows that road traffic and aircraft noise increase the risk of high blood pressure. Noise pollution also affects wildlife, where animals depend wholly on their hearing for hunting.
D. Artificial selection means that it doesn’t happen naturally, many dogs breeds exist because of artificial selection
Answer:
Thirty patients with acne volunteer to be treated with either a medicinal lotion
or a normal moisturizing cream. This type of experimental design is called
a clinical trial.-B.
Answer: <u>Option C
</u>
<u>Explanation</u>: Hills are the most common source of sediments because they lack vegetation. Plants and trees hold the soil and thus prevent erosion of soil layer with water. The sediments from the hilly areas get carried by rain water or runoff, and add to the water bodies, like lakes and streams.
Waste from mining industries don’t have sediments in their waste, so option B is incorrect.
Option A is incorrect because over-irrigation will not affect the soil layer, as it is firmly held by the roots of the crops.