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dybincka [34]
2 years ago
5

In what kind of star system does one star sometimes block the light from another?

Biology
1 answer:
Romashka [77]2 years ago
5 0
I think the answer is 3 or 2 i
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A bacterial culture is being tested for its ability to reduce nitrate. After incubation and growth of the bacteria in nitrate br
skelet666 [1.2K]

Answer:

All this combination of reactions is summarized in that the bacteria reduced nitrate, that is, they added protons to said compound, giving nitrite as a product.

By promoting the appearance of nitrite and that it increases in its concentrations when the zinc dust is thrown away, it becomes reddish since there was a change in pH, that is, the medium was acidified.

Explanation:

Some bacteria take nitrate as a source and end up generating an oxide reduction reaction that gives nitrite as a product, if this reaction advances in a chain, that is, the nitrite is reduced after the nitrate, the product in the future would be ammonia

8 0
3 years ago
How does water enter the atmosphere? a. liquid water evaporates from lakes when heated by the sun. b. frozen water sublimates fr
pentagon [3]

Answer:

<u>d</u>

Explanation:

Water enters the atmosphere by :

⇒ liquid water evaporates from lakes when heated by the Sun

⇒ frozen water sublimates from ice and snow

⇒ liquid water is lost from tree leaves during evapotranspiration

7 0
1 year ago
Describe three methods used to decrease the chances that microorganisms will spoil<br> the food.
Tatiana [17]

1. wash your food.

2. put it in the fridge.

3. Cover it up.

I'm  boredddd lol

3 0
3 years ago
Studies have shown that children are especially vulnerable to the effects of ultraviolet (UV) radiation. Tanning beds expose the
balandron [24]

Hello there!!

The answer, I think, would be A.

UV radiation can create problems in the correctness of cell replication, which can result in mutated cells.

I hope this answers your question!

4 0
2 years ago
Discribe the population growth for the first 3 years.
Triss [41]

Answer:

The answer would be A

PLEASE MARK ME BRAINLIESTY

THE ANSWER IS A BECAUSE IT GROWS VERY FAST UP IN A FAST DIRECTION

THANKS

Explanation:

6 0
3 years ago
Read 2 more answers
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