Universe, Stars, Planets, Asteroids
Electrons were discovered by cathode ray
The full question is:
<span>Which of the following statements are true about measurements and units?
A. The SI Unit is used by scientists all over the world.
B. The unit of mass in the SI system is the kilogram.
C. Measurements do not need to include units.
D. The English system of measurements is based off of the powers of ten.</span>
The correct answer is A. The SI Unit is used by scientists all over the world. <span>The <span>International System of Units is the metric system which consists of units of measurement. There are 7 main units: ampere, Kelvin, second, meter, kilogram, candela, mole and 22 derived units.</span></span>
The Jaeger reading cards are used to test near vision. It's usually held by a patient at a certain distance from the eye depending on the size being read. The smallest letters one can read is what determines their visual acuity!
Answer:
Explanation:
It depends on how this is done. If you raise the pressure, the nitrogen will disappear (liquify) and all that will be left will be the 21 % oxygen and the 1% argon.
The process is very complicated because the boiling point of nitrogen keeps on changing. The boiling point is unstable.
