harmoneyyyy harmoneyyyy

14-11-2020
Chemistry

contestada

What percentage of the atmosphere is oxygen?

Respuesta :

sukunshrestha sukunshrestha

14-11-2020

Answer:

21%

Explanation:

It's a mixture of different gases. The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.

Answer Link

Otras preguntas

she (bear)....... her troubles without complaint. (use past tense and present perfect)

why don't we have the same means of livelihood in the different provinces and regions of the country?

Give one example of a child that when upset uses the brain state of survival, emotional or executive. Survival: Emotional: Executive:

Please help me with this problem

what type of painting is the ceiling of the sistine chapel?

An increase in which property would cause an electromagnetic wave's energy to increase? A. Wavelength B. Mass C. Frequency D. Speed SUBMIT

The magnetic field of a straight, current-carrying wire is:

Time went scuba diving and descended at a rate of 35 feet every 20 min. If Tim was diving from 11:00AM to 12:00PM. What was Tim's altitude at 11:40AM?

What is the value of the expression when n = 14?

Pls help this is timed and I don’t understand