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Andrew [12]
3 years ago
5

In 1939, the use of DDT (a powerful synthetic chemical) as an insecticide was discovered. The United States adopted its widespre

ad use, producing up to 100 million kilograms per year (200 million pounds per year). Twenty years later, severe side effects started to be reported as a result of DDT use. Which was an advantage of using DDT?
insect and pest populations decreased

birth defect rates increased

cancer rates increased

fertility rates decreased
Biology
2 answers:
olganol [36]3 years ago
7 0
The answer is <span>insect and pest populations decreased.
</span>

DDT (dichlorodiphenyltrichloroethane) was used as an insecticide which is a substance used to kill insects. That resulted in decrease in insect and pest populations. It is a persistent and non-degradable insecticide, but as well organic pollutant readily accumulated to soils and consequently affects organisms.
nordsb [41]3 years ago
7 0

Answer:

A. insect and pest populations decreased

Explanation:

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Which of the following statements about minerals is FALSE?
Hatshy [7]

Answer:

b. They can be destroyed by cooking.

Explanation:

Minerals are inorganic elements that  always maintain their chemical structure. The minerals are not destroyed or altered by  heat, oxygen or acids.

Iron, for example, can be temporarily combined with  other elements forming salts, but it is still iron.

4 0
2 years ago
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What are the two types of orientation behavior? Provide an example of each.
netineya [11]

Answer:

Two types of orientation behavior are as follows:

Taxis behavior:

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Kinesis:

Kinesis may be defined as a type of orientation behavior that can change the complete movement or orientation of the organism. Kinesis is a random movement and organism can move in either direction. Different type of kinesis are klinokinesis and orthokinesis.

6 0
3 years ago
For the roller ball, create a subset of messaging/marketing that speaks to this product specifically.
frutty [35]

The marketing of roller ball can be given with the questions such as Don't just mask the pain, fix the problem.

<h3>What is marketing?</h3>

Marketing can be given as the process of creating demand by meeting goods and services in the market. The marketing can be followed with varying messaging that targets a problem.

The complete question is given in the image attached below.

Some of the marketing messages that speak for the roller ball in the market are:

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For more information regarding marketing, visit:

brainly.com/question/25754149

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8 0
2 years ago
Do you think most traits are inherited the way mouse fur color is? What do you think this is?
Alex73 [517]

Answer:

they get their inhertitane by their parents so no its not the fur

Explanation:

hope this helps

5 0
2 years ago
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Analyze the graph with a partner. How many mass extinctions did you identify? How did you determine when they occurred?
Scilla [17]

Answer:

4 mass extinctions

Explanation:

as there are huge drops in the graphs

at 440,390,260,50

Mark me as brainliest pls

6 0
2 years ago
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