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Elodia [21]
3 years ago
5

All of the following are sources of air pollution, EXCEPT

Biology
2 answers:
san4es73 [151]3 years ago
8 0
B is the correct answer.
forsale [732]3 years ago
7 0

The correct answer is B) Heavy metals such as mercury.

Explanation:

Heavy metals such as mercury or lead are denser than regular metals, this causes it is common for these metals to be found in the surface of Earth rather than in the air or atmosphere. Indeed, mercury and other similar metals are extracted from the Earth's crust and then used for different purposes. As a result of this, mercury ends up in the surface of Earth or in water sources which causes soil or water pollution. This means mercury is not a common source of air pollution; on the opposite other such as CFCs, nitrogen oxides and smog remain in the air and therefore are sources of air pollution.

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Which of the following statements is true about viruses?
Akimi4 [234]

Explanation:

viruses may contain very small cells viruses can produce them quickly when they get a mode of transmission viruses have hyphae BUT viruses never eat any food so second statement is true....

4 0
3 years ago
Round seeds and yellow seed color are dominant to wrinkled seeds and green seed color. Which Punnett square represents the corre
Leya [2.2K]

Answer:

A punnet square can be described as a diagram which depicts the outcomes of the genotype and phenotype of offsprings from a cross between parents. A cross in which a single trait is being considered is a monohybrid cross. A cross in which two traits are being studied is considered as a dihybrid cross.

The punnet square for such a cross can be made as follows:

           RY             RY         rY          rY

RY    RRYY       RRYY       RrYY      RrYy

RY    RRYY       RRYY       RrYY      RrYY

Ry     RRYy        RRYy       RrYy       RrYy

Ry     RRYy        RRYy       RrYy       RrYy

7 0
3 years ago
Read 2 more answers
Which of the following are phagocytic?
Vinvika [58]

Answer:

The correct answer is option F. monocytes, macrophages and neutrophils.

Explanation:

Phagocytic cells are the cells that engulf harmful substances or foreign particles,  bacteria and other dead cells. These cells destroy them by engulfing the foreign particles and degrade them by chemical releases.

The phagocytic cells include - monocytes, macrophages, neutrophils, and dendritic cells. All these three types of cells are further divided. The neutrophils are the first cell to appear at the site of the infection or injury.

Thus, the correct answer is option F. monocytes, macrophages and neutrophils.

7 0
3 years ago
A flood kills most of the population of ants that live near river water
AVprozaik [17]
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I hope you get this answer right!
Have a great day!:DDDD :)!</span>
4 0
3 years ago
Using a __ clock, scientists are able to estimate the amount of time that two species have been evolving independently
romanna [79]
Using a molecular clock, scientists are able to estimate the amount of time that two species have been evolving independently.

Hope this helps :)
4 0
3 years ago
Read 2 more answers
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