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olganol [36]
3 years ago
14

Which of the following is a chemical reaction?

Biology
2 answers:
sergejj [24]3 years ago
6 0

Answer: D. Iron rusts

Explanation: Rust is made from different chemicals in the air that come in contact with said metal. That could be acidic rain for example. Water freezing is only changing temperature. Sugar dissolving is breaking down molecules. Salt and pepper mixed in a dish is a physical change (also that's just plain evil to some people but that isn't the point). Your answer will be D. Iron rusts.

Hope this helps!

Scrat [10]3 years ago
4 0

Answer:

i think it is d

Explanation:

sorry if wrong

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Onion skin is a plant cell. And your skin cell is a animal cell.
Basically as simple all the structures in animal cell can be found in plant cells. But plant cells has some extra structure and part where doesn't exist in animal cells.
In animal cell, it contains a cytoplasm, nucleus and a cell membrane.
But in plant cell, they have chloroplast, cell wall and vacuole in additional.
6 0
4 years ago
What term generally describes small chunks of rocks and debris in space?
Fiesta28 [93]

When in space it is a meteorite. When it is entering the atmosphere, it is a meteor. When it hits the earth it;s classified as a meteoroid.


Hope this helps.

3 0
4 years ago
Read 2 more answers
Is this the correct answer?
Sergeeva-Olga [200]
Yes probely is but just try
8 0
3 years ago
I can't focus please help me
WINSTONCH [101]

Explanation:

1) The male frogs croak to attract mates. They can also visually attract females by displaying vibrant colors. They compete by comparing who calls louder

2) This aids in survival because this ensures that only healthy frogs get to pass down their genes. Unhealthy frogs will not be selected by females. This is called sexual dimorphism

3) The hummingbird displays its impressive tails which they move around to attract females. They may perform aggressive movements against other competing males.

4) These strategies are very important to maintain a diverse and healthy population in a community of animals.

7 0
3 years ago
The process by which organisms that have traits that help them survive and reproduce is
Vsevolod [243]

Answer:

D I think

Explanation:

4 0
3 years ago
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