They're totally unrelated. No matter how low or high the molecular weight, you can always use more or less of it.
The answer is B. The earth's axis is tilted so that the Northern Hemisphere faces the sun. Hope this helps and good luck! :)
Answer:
c
Explanation:
all the atoms must be balanced.
Answer:
I can be a friend if u need
The correct answer is D.
Echo refers to the sound that is heard when a sound wave is reflected back from a surface. An echo sound is made when a sound wave traveled through the air, hit a hard surface and get reflected back. Generally, hard surfaces reflect sound wave while soft surfaces absorb sound waves. Reflected sound waves are used in application of some devices that are used in range and direction finding.
