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Deffense [45]
3 years ago
13

Which statement about Earth's layers is true?

Biology
2 answers:
Svetlanka [38]3 years ago
6 0

Answer:

B

Explanation:

The do vary in size and temperature because as the layers go down to the core it gets harder and magma is more present

Whitepunk [10]3 years ago
6 0
The answer is b hopefully I’m right !!
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A scientist helps a colleague do a better experiment by:
Virty [35]

Answer:

B. Offering advice about how best to perform a standard procedure.

Explanation:

Helping others can be in different ways, be it helping out or by giving encouraging words or advice. But in all aspects of help, there is always a positive outcome if help is given in the right way and at the right time. And it is also how one person lifts another.

A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful. The other options are all negative in their 'approach' which will only hinder the colleague in his/her works.

Thus, the correct answer is option B.

7 0
3 years ago
Based on the temperature data in the table which chemical reaction should the students use for their food carrier design
Sladkaya [172]

Answer:

Reaction 1

Explanation:

Reaction 1 would be the most suitable in this case. This is so because in reference to the question you are wanting to keep the food warm over long periods. So in reference to the data in the chart reaction 1 continues to heat up over long periods of time. However, with the other reactions (2, 3, 4) temperatures vary and some even decrease constantly. Therefore showing that the other reactions are invalid to help reach your goal referencing back to the question.

7 0
3 years ago
How to find atomic mass number?<br>PHYSICS question<br>​
Yakvenalex [24]

Answer:

Together,the number of protons and the number of neutrons determine an elements isotopes have slightly different mass numbers, the atomic mass is calculated by obtaining the mean of the mass numbers for its isotopes.

hope it is helpful....

8 0
3 years ago
Read 2 more answers
Which process in eukaryotic cells will normally proceed whether O2 is present or absent?
9966 [12]

Answer:

b) glycolisis

Explanation:

Glycolisis precedes the Krebs cycle and can take place under aerobic or anaerobic conditions. Under aerobic condition, energy is directed towards the Krebs cycle in the form of piruvate and NADH to create more ATP. Under anaerobic conditions piruvate does not enter the Krebs cycle and it is oxidized to produce lactate.

6 0
3 years ago
DNA is different from RNA in that
Olegator [25]

Answer:

RNA contains an additional oxygen atom on the ribose sugar. (Ans. C)

Explanation:

RNA contains a sugar which is known as ribose, and which contains an extra group of hydroxyl (OH-) while DNA contains deoxyribose sugar.

RNA contains four nitrogenous bases cytosine, adenine, guanine, and uracil, while DNA contains cytosine, adenine, guanine, and thymine.

Double helix means two stranded structure like DNA, while RNA is single stranded.

DNA molecule is much longer polymer than RNA molecule.

5 0
3 years ago
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