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VLD [36.1K]
3 years ago
10

Two scientists test soil fertility in a forest and a nearby field. Both scientists find that the soil fertility in the forest is

higher than the soil fertility in the field. Scientist A says that the forest's soil fertility is higher because the forest has more vegetation that keeps the topsoil from eroding. Scientist B says that the forest's soil fertility is higher because the forest's soil has a high count of decomposing bacteria. Which of the scientists' conclusions is valid?
Neither scientist's conclusion is valid because soil fertility is hard to test.
Only scientist A's is valid because it is supported by evidence.
Only scientist B's is valid because bacteria increase soil fertility.
Both scientists' conclusions could be valid.
Biology
2 answers:
pochemuha3 years ago
8 0

D. both scientists' conclusions could be valid.

hope this helps.

lana [24]3 years ago
3 0

<u><em>Both scientists' conclusions could be valid.</em></u>

There are many ways to interpret data. Both of the scientists present a possible way to interpret the forest's higher soil fertility. Neither interpretation can be disproved without further research.

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Hello. Your question is incomplete. However, I managed to find a question exactly like yours on the internet and managed to realize that you forgot to say that your question asks you to give an example of the statement presented above.

Answer:

A major disturbance from which the ecosystem was able to recover completely was the disease that almost wiped out all of Ireland's potato in 1840.

Explanation:

You may have heard of the Irish Potato Famine, which was a time when the Irish population lived very difficult days, after an illness that almost decimated the country's potato plantations.

The potato was the main source of food for the Irish, but in 1840, a fungus called Phytophthora infestans, managed to infect almost all potato plantations in the country, preventing the potato from being harvested and could be consumed. This created major economic and social problems in Ireland, as people suffered from hunger, poverty and the diseases that arose, which caused many Irish people to immigrate to other countries, or to die.

The fungus plagued the ecosystem for years and only started to decrease in intensity in 1850, once the ecosystem started to recover. Currently, although the pest still exists, the Irish ecosystem is completely recovered and the pest is controlled and is unable to make such an impact.

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