Eutrophication is always the result of human activity. true or false

Answers

Answer 1

Answer: False. Eutrophication is defined as enrichment of nutrients in any bodies of water which can lead to the the death of plants and animals. Eutrophication is not always caused by the activities of human. It is a phenomenon that happens naturally from processes in the water body. However, the activities of human increased the rate of eutrophication. One example of human activity is the use of too much fertilizers wherein the excess amount could run off to a lake or any water body near the site.

Answer 2

Answer:

Answer:

false

Explanation:

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How does the action of wind affect a rock's appearance?
Which of the following conclusions can be accurately drawn by analyzing both the Silk Road trade and the African gold-salt trade?A. In both cases, wealthy Asian and European traders were able to exploit African merchants. As a result, African countries suffered from trade. B. In both cases, Islam spread among societies that traded with one another. This contributed to Islam becoming the dominant religion in Africa and Asia. C. In both cases, socieites were brough into contact through trade. The cultural exchanges that went along with that trade enriched those societies. D. In both cases, interactions between societies led to conflict despite the success of trade contacts. These clashes left trading societies vulnerable.
In 1859, Charles Darwin described a model of how living things change over time. He described this model and the evidence that supported it in a book called On The Origin of Species. Which of the following is the scientific term is used to describe a testable model that seeks to explain natural phenomena? a) data b) hypothesis c) observation d) theory
An experiment is done on three tomato plants over a 50 day period to test the following hypothesis: If either fertilizer or compost is used on plants then a plant that gets fertilizer will affect the plant growth the most. The same amount of water and light were applied to each tomato plant. Pot A contained no fertilizer or compost, Pot B contained fertilizer and Pot C contained compost. Which is the independent variable? a. Time of experiment b. Amount of water c. Plant growth d. Amount of fertilizer

The purpose of the right ventricle is to: receive blood coming back from the lungs pump blood to the upper and lower body pump blood into the lungs to be oxygenated receive blood back from the upper and lower body

Answers

The right ventricle's function is to pump blood into the lungs so that it can be oxygenated. The correct option is C.

Thus, deoxygenated blood from the right atrium is taken up by the right ventricle and pumped into the pulmonary artery, which transports the blood to the lungs. Through the act of breathing, the blood obtains oxygen in the lungs and releases carbon dioxide.

The oxygenated blood is then returned to the left atrium of the heart where the left ventricle pumps it to the remainder of the body. As a result, the right ventricle's main job is to pump blood to the lungs where it may be oxygenated.

Thus, the ideal selection is option C.

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The right ventricle will pump blood into the lungs to be oxygenated bia the pulmonary artery.

Lotions applied during winter season moisturize the skin very quickly. What could be the reason for this? A.The oils in the lotion enter the skin cells by means of phagocytosis.
B.The oils in the lotion enter the skin cells with the help of carrier proteins.
C.The oils in the lotion enter the skin cells by means of facilitated diffusion.
D.The oils in the lotion enter the skin cells by means of simple diffusion.

Answers

The right answer is D.

The absorption of molecules at the level of the skin is carried out by passive diffusion for the molecules of low molecular weight (lower than 400 Da), the skin being covered with a lipoprotein film rich in water by its stratum corneum, rendering it little-permeable.

This absorption may be variable according to factors related to the skin such as stratum corneum's thickness, the state of hydration, the presence of cutaneous lesions or individual variations.

External factors may also modulate percutaneous absorption such as contact time, iontophoresis or the presence of specific adjuvants.

What causes chemical weathering?a.
damage caused by animals and plants
c.
natural acids
b.
ice wedging
d.
physical factors

Answers

natural acids because chemicals erode rocks in chemical weathering

OK so basically Chemical weathering occurs from rain and other things that are washed in with it so best choice will be to go with option C. Natural Acids.

Why is it important for biologists tounderstand the different types of
interactions in an ecosystem?

Answers

Answer:

So they Can work better and quicker

Selective cutting is different from clear-cutting,because in selective cutting A= no trees are cut down
B=all the trees are cut down
C=some trees are not cut down
D= there is a greater damage to the forest

Answers

c, some of my close family does logging stuff, and I hear about this all the time.

the answer to this question is c.

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What percentage of alcohol is absorbed by the small intestine? 50-60%, 60-70%, 70-80%, 80-90%

Answers

Around 70-80% of alcohol is efficiently absorbed by the small intestine due to its big surface area. However, alcohol is also absorbed by all parts of the gastrointestinal tract. In fact, the stomach absorbs 10-20% of alcohol. This is the reason why people who have ingested food prior to drinking alcohol are able to hold their liquor better. Once the alcohol is absorbed, it travels throughout the body via the person's blood until equilibrium is achieved.

Final answer:

Approximately 90 percent of the water you ingest is absorbed by the small intestine.

Explanation:

The small intestine absorbs about 90 percent of the water you ingest. Water absorption is driven by the concentration gradient of the water, which is higher in chyme than in epithelial cells. Thus, water moves down its concentration gradient from the chyme into cells. The remaining water is then absorbed in the colon.

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