ashleyshadowdem ashleyshadowdem

14-04-2015
Geography

Answered

How much of Earth's atmosphere is made up of nitrogen and oxygen?
A. 100 percent
B. Between 25 and 75 percent
C. Close to 99 percent
D. Less than 1 percent

Answer :

toltecavsmaya toltecavsmaya

14-04-2015

78% nitrogen, 21% oxygen,

Good luck

Answer Link

thompzac thompzac

14-04-2015

C: close to 99% percent because it is made up of 78% nitrogen and 21% oxygen.

-Enjoy!=)

Answer Link

Other Questions

As a medical assistant, why do you think is it important to learn about the respiratory system?

The following are situations that may violate the Code of Professional Conduct. Assume, in each case, that the CPA is a partner, unless stated otherwise. Discus

Write an equation that represents the line. Use exact numbers. please help

Unit Test Review: Which situation best shows the Hindu belief in ahimsa?A. A woman declines to eat meat.B. A daughter helps her mother with chores.C. A man is r

The polynomial function of least degree with a leading coefficient of 1 is:[tex]\[ f(x) = x^3 + Ax^2 + Bx + C \][/tex]

Solve [tex]58 - 10x \leq 20 + 9x[/tex]A. [tex]x \geq -2[/tex] B. [tex]x \leq 2[/tex] C. [tex]x \leq -2[/tex] D. [tex]x \geq 2[/tex]

A nurse is caring for a client with diabetes insipidus (DI). List two (2) manifestations of this diagnosis.

How do you turn off the maintenance light on a Toyota Corolla?A) Press and hold the odometer reset button while turning the ignition key to the "ON" position.B)

Ahmed is testing how different objects accelerate based on their mass. He runs three tests and records the data shown below.\begin{tabular}{ccc}Test & Mass

\begin{tabular}{|c|c|c|c|}\hline & Boys & Girls & Total \\\hline Can count & 42 & 58 & 100 \\\hline Cannot count & 11 & 9 &

what is the measure of an exterior angle of a regular quadrilateral

Which element reacts spontaneously with 1.0 M HCl at room temp? 1.copper 2.gold 3.silver 4.zinc

What was Lincoln's attitude towards the defeat of the south during the civil war?

how do you explain the midpoint of cd is e (-1,0). one endpoint is c(5,2). what are the coordinates of the other endpoint?

what is the measure of an exterior angle of a regular quadrilateral

How would the graph of the relation y=3x-2 change if the 3 and -2 were both doubled? The graph would be a) steeper and have a lower y-interceptb) steeper and ha

explain how the number of valence electrons in atoms relate to their bonding with other atoms to form molecules ?????

How would the graph of the relation y=3x-2 change if the 3 and -2 were both doubled? The graph would be a) steeper and have a lower y-interceptb) steeper and ha

Magic squares when added all rows & columns equal the same #, such as the example on q #7. I need Question #8 . Please help

(x³+6)(x⁴-9)= ___ (type terms in descending order) please help.