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nikdorinn [45]
3 years ago
5

( please help !!!! )

Chemistry
1 answer:
Yanka [14]3 years ago
8 0

It avoids confusion through scientists. If you think, they could be practicing or studying in varying countries and something uniform for science avoids all confusion!

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The satellite image above shows a portion of the Namib Desert in Africa. This is an ancient, sandy desert with dunes that can be
erastovalidia [21]

Answer:

blowing wind

Explanation:

in a desert there is no water so that cuts the first two out. then for the wind... well there are no mountains or buildings in the desert to block the wind. the last answer, crustial uplift... how often does that happen... =)

3 0
3 years ago
Why is boiling water a physical change
Harrizon [31]

Answer:

Boiling water is an example of a physical change and not a chemical change because the water vapor still has the same molecular structure as liquid water (H2O).

Explanation:

6 0
3 years ago
This cold river of air travels from west to east in the northern hemisphere. In winter, it dips south helping to bring cooler ai
Alex_Xolod [135]

Answer:

Polar Jet stream

Explanation:

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4 0
3 years ago
A person's heartbeat is 73 beats per minute. If his heart beats 3.1e9 times in a lifetime, how long does the person live?
tiny-mole [99]

Answer:  The person lived for 80.66 years.

Explanation:

Heart beat of the person = 73 beat /min

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1 year =525600 mins

Life span = 0.0424\times 10^{9} min=80.66 years

The person lived for 80.66 years.

7 0
3 years ago
3 examples of potential energy
spin [16.1K]
The potential energy .. 
1- when a rubber band is stretche and waiting to be released 
2- an acorn hanging from a oak tree
3- a pice of celery 

4 0
3 years ago
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