This means "what benefits does the volcanic activity have for the population?" I would say that the main benefit of continental volcanic activity is the expulsion of ash which can enrich the soil and in the tropics make it good for growing coffee, for example, as it does in El Salvador.
This question is not complete; here is the complete question:
A one-hectare pond is sampled in early September. The sample yields 1 small catfish as well as 17 benthic invertebrates that represent 10 species.
If the pond is resampled a year later, which of the following would best indicate that the pond had been adversely affected by adjacent development?
A. An uncommon species has become more numerous
B. An increase in low-tolerance species has occurred
C. A decrease in high-tolerance species has occurred
D. Phylogenetic diversity has occurred
E. The biodiversity of the pond has decreased
The answer to this question is E. The biodiversity of the pond has decreased
Explanation:
In ecology, an ecosystem can be affected by adjacent developments including human developments or even other ecosystems and this can lead to positive or negative consequences.
In this context, one example that shows the was an adverse effect is "The biodiversity of the pond has decreased" because the reduction in diversity represents a major thread for an ecosystem as this makes species more vulnerable to disappear. Also, this can be caused by factors such as pollution caused by human development or major predator of the adjacent ecosystem feeding on organisms in the main ecosystem. Besides this, in the first sample, there were multiple species and a reduction in the second sample shows the ecosystem was weakened.
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E Both A & C, need an explanation?
Answer:
<u>Benin-</u> A history of region which hold great information about the rich culture of an ancient cultures, as it was made target by the unfortunate act of slave trade. But, in the past the Benin's history of slavery is misrepresented by various historians.
<u>Due, two main reasons;</u>
- The west was all involved in the slave trade which occurred in the region, they did not wanted to highlight them just for the sake not to make them look bad.
- Along with that the analyst were facing difficulties in representing the history with a more clear words due to the forces present inside in Benin outside the region.
Explanation:
In the past an empire in Africa existed, it was rich and considered the most powerful in the region. As its ruler had the man power, along with the riches to defend there country. But, in the time when there came crises and people were made slaves as foreigner were there to purchase slaves from the leaders who are willing to let there people in exchange of gold and other favors from the Portuguese, Brits, and the french.
