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trapecia [35]
3 years ago
13

13. Which of these statements about particulate matter less than 2.5 microns in diameter is true?

Biology
2 answers:
jekas [21]3 years ago
7 0

Answer:

Nitrogen Gas

Explanation:

penn foster

lesson 2

page 13

stellarik [79]3 years ago
5 0
B they are produced from nitrogen gas (N).
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VARVARA [1.3K]

Answer:

Biotic, Abiotic

Explanation:

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4 0
2 years ago
Why is a control group important in a scientific experiment?
Alisiya [41]

Explanation:

because it allows you to eliminate or isolate variable/ it allows the experiment to minimize the changes in all the variables except the one being test.

I'm not gonna choose bc I'm not 100% sure either so read what's above, think it over and choose wisely

hope I helped a little and good luck :)

7 0
3 years ago
Why doesn't a spider get stuck in its own web?
joja [24]

spiders don't come into contact with their webs all at once. Instead, they move nimbly along the strands of their webs with only the hairs on the tips of their legs making contact with the sticky threads.  

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3 years ago
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irina [24]
Answer is False took biology last year lol 
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Why is the flow of energy important
Serga [27]

Answer:because of energy stored

Explanation:

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