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Chemical/Diseases Pollution REDemption

Last updated 9 months ago

5 questions

1

1

1

1

1

Question 1

1.

This pathogen is primarily transmitted by mosquitoes and is found most often in sub-Saharan Africa.

Zika

Cholera

Tuberculosis

Malaria

Question 2

2.

Which of the following human health issues is linked to exposure to pollutants released during the incineration of plastic waste?

Mesothelioma

Asthma

Dysentery

Cholera

Question 3

3.

The graph below represents the dose response curves of insect pests for four different pesticides.
A farmer needs to kill more than half of the insect crop pests to ensure a profitable harvest. Based on the graph, what is the minimum concentration of pesticide C that the farmer must use to make a profit?

50g/cm3⁢

500g/cm3

1,000g/cm3

1,500g/cm3

Question 4

4.

The graph below represents the dose response curves of insect pests for four different pesticides.
The United States Environmental Protection Agency has determined that all four pesticides could have negative health consequences to humans if applied at high concentrations and has set a maximum application concentration of 500g/cm3. Based on the data in the graph, which pesticide would be the most effective at that concentration?

A⁢

B

C

D

Question 5

5.

Students conducted an experiment to calculate the LD50 of Chemical X on seedlings. They grew separate groups of seedlings in a range of doses of Chemical X. After several days they calculated the percent mortality at each dose and graphed the results. Which of the graphs correctly shows how to determine the LD50 of Chemical X on the seedlings?