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.
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it led to dispute over who could trade where, and disputes over the trade agreements themselves, since every country wanted the best deal.
Answer:
A. Instead of being dignified artisans, workers were now laborers for a boss
Explanation:
According to socialists, while industrialization brought enormous productivity and more wealth, it did not necessarily benefit workers.
Workers, who were artisans or farmers before, became subjugated to the capitalists, losing connection to their jobs, and becoming alienated.
The two types of union in the post-civil war period are the following;
<span>·
</span>Industrial union – this union is comprised of
unions that are all joined together
<span>·
</span>Trade union – this union are composed of people
that are mechanists, electrician, carpenter, printer and plumber
Answer:
Dr. Robin Coombs, a British immunologist who in the 1940's invented a blood test that bears his name and a version of which is still widely used to diagnose some kinds of anemia and to prevent negative reactions to transfusions, died on Jan.
Explanation:
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