1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Andrej [43]
1 year ago
14

Most of the air we breathe is made of what molecule?

Biology
2 answers:
bonufazy [111]1 year ago
8 0

Answer:

C. Nitrogen

Explanation:

The composition of air is as follows:

nitrogen 78%

Oxygen 21%

carbon dioxide 0.03 %

water vapour 0.2 to 0.4 %

Snezhnost [94]1 year ago
5 0
The answer will be C if you are talk about the percent of what the air made out of
You might be interested in
Describe changes in body size, proportions, and skeletal maturity during middle childhood.
iragen [17]
The changes that occur in body size, proportions, and skeletal maturity during the middle childhood include;  Bones continues to strengthen and broaden, permanent teeth replace the primary teeth, normally a third of school age children suffer from malocclusions, making braces common by the end of elementary school.  Additionally, the children's growth is slow and regular though large individual and ethics variations exists in the physical growth. <span />
8 0
3 years ago
Which major processes were needed for the origin of life on Earth?
Rama09 [41]

Answer:

air and water

Explanation:

5 0
3 years ago
Read 2 more answers
consider the differences in solids, liquids and gasses, and their surface area. which state of matter do you think would usually
eimsori [14]

Answer:

el que tendrá mayor velocidad de reacción son los líquidos

Explanation:

6 0
3 years ago
Which of the following statements correctly describes the Sun?
AveGali [126]

Answer:

B

Explanation:

"Energy is generated in a red dwarf in the same way that it is in the Sun, namely through the fusion of hydrogen into helium. ... So long is the process, in fact, that the lifespan of a red dwarf can be far longer than the expected age of the universe, thought to be about 14 billion years."

8 0
3 years ago
This is one of the five kingdoms in the older biological succession. Organisms in this kingdom are prokaryotic
Mila [183]

Monera kingdom is one of the five kingdoms in the older biological succession. It consists of unicellular organisms that do not have no trues nuclear membrane which is characteristics of the prokaryotic cells and thus is also referred to as Prokaryotic organisms

8 0
3 years ago
Other questions:
  • Why do plants at the bottom of a pond grow better than plants at the bottom of a lake
    13·1 answer
  • "Which phase of mitosis shows the greatest difference between animal cells and plant cells"?
    14·1 answer
  • The lower mantle has an average density of 5.5 g/cm³ which of the following could be density of the outer core?
    6·1 answer
  • A group of biology students tests the growth of bacteria under different conditions. The students apply the same amount of bacte
    5·1 answer
  • Someone knows this for living environment
    8·2 answers
  • Which description explains why there are two high and two low tides in a day? (4 points)
    9·1 answer
  • Who was credited with the discovery of the virus?
    12·2 answers
  • The maps above show the arrangements of Earth's continents and oceans 65 million years ago and at present. Which of the followin
    15·2 answers
  • Mark you brainelest if you get this question right. At a convergent boundary between continental and oceanic crust, what feature
    15·1 answer
  • DNA _____________________ after transcription.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!