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Vika [28.1K]
2 years ago
9

Wrrite any 4 importance of nitrogen​

Chemistry
1 answer:
olga2289 [7]2 years ago
3 0
Nitrogen Is Key to Life!

Nitrogen is a key element in the nucleic acids DNA and RNA, which are the most important of all biological molecules and crucial for all living things. DNA carries the genetic information, which means the instructions for how to make up a life form.
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All energy originates from the _______.
Phantasy [73]

Answer:

sun

Explanation:

because all plants use energy from the sun to make food and grow

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3 years ago
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Which statements accurately describe binary star systems? Check all that apply. have more than two stars have stars that are alw
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Answer:

have stars that might appear to wobble

often have one star that is brighter than the other

Explanation:

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Most binary stars might appear wobble. One of the stars often appears brighter than the other.

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igor_vitrenko [27]

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3 years ago
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1. 2.0 mL/s x 4.0 hrs = ? L<br><br> How do you do this conversion problem
Phantasy [73]

Answer:

29 L.

Explanation:

Hello!

In this case, considering that we are performing a conversion by which the time should be cancelled out to obtain liters, we first need to convert the seconds on bottom to hours and then the volume on top to liters, just a shown down below:

2.0\frac{mL}{s} *\frac{1L}{1000mL} *\frac{3600s}{1hr}*4.0hr\\\\=28.8L

Which turns out 29 L with 2 significant figures.

Best regards!

6 0
2 years ago
The majority of the elements essential to life are found in what part of the periodic table?
IRINA_888 [86]
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3 0
3 years ago
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