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Burka [1]
3 years ago
11

What did the study in a Pennsylvania forest reveal about the environmental effects of using DDT? a. DDT caused the birds in the

forest to disappear. b. DDT killed aphids that ate forest leaves. c. DDT killed ladybugs, which caused the aphid population to rise. d. DDT killed aphids, which caused the ladybug population to rise.
History
2 answers:
Zigmanuir [339]3 years ago
8 0
The one that the study in a pennsylvania forest reveal about the environmental effects of using DDT is : C. DDT killed ladybugs, which caused the aphid population to rise
It's known that Ladybug consume aphids daily. If the population of Ladybug somehow decreased, the population of aphid will slowly rise

hope this helps
Romashka-Z-Leto [24]3 years ago
7 0
What did the study in a Pennsylvania forest reveal about the environmental effects of using DDT?

Answer: Out of all the options presented above the one that best represents what the study in a Pennsylvania forest reveal about the environment effects of using DDT is answer choice C) DDT killed ladybugs, which caused the aphid population to rise.

I hope it helps, Regards.
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Answer:

They already moved because of the threat from the Settlers.

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Florida was a very popular region among the settlers. This territory possess a perfectly warm climate and excellent soils that make it easy to grow various types of crops.

This made a lot of people move here to opened up plantations/farms. As the number of settlers increased, Native Americans faced bigger threats of engaged in the conflict /being killed. This forced them to spread out and move to other territories before the creek migration even began.

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3 years ago
How do you think Andrew Jackson handled the Peggy Eaton incident? How would you have handled it? How have stereotypes of women c
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Answer:

President Jackson had appointed John Eaton Secretary of War.

Explanation:

Friends of Jackson had counseled him not to make the appointment because of Eaton's scandalous association with Peggy. He ignored all the warnings. With her marriage to John, Peggy Eaton entered the highest society in America of the Cabinet social circle.

HOPED THIS HELPED YOU OUT

A brainliest is always appreciated.

4 0
2 years ago
Which cause saw countries defend other countries and create the World War 1?
KATRIN_1 [288]

Answer:

The real causes of World War I included politics, secret alliances, imperialism, and nationalistic pride. However, there was one single event, the assassination of Archduke Ferdinand of Austria, which started a chain of events leading to war.

Explanation:

happy to help ya:P

7 0
3 years ago
Which project led to the creation of a system of time zones across America? A. establishing a national park system B. digging th
matrenka [14]
The project D. Building the Transcontinental I believe is the one that led to the creation of a system of time zones across America
5 0
3 years ago
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Name the first settlement in Rhode Island​
SVETLANKA909090 [29]

Answer:

Roger Williams founded the first permanent white settlement in Rhode Island at Providence in 1636 on land purchased from the Narragansett Indians. Forced to flee Massachusetts because of persecution, Williams established a policy of religious and political freedom in his new settlement.

Explanation:

6 0
3 years ago
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