Answer:
Hydrogen is the most abundant element in the Universe; helium is second. However, after this, the rank of abundance does not continue to correspond to the atomic number; oxygen has abundance rank 3, but atomic number 8. All others are substantially less common.
Explanation:
Answer: It is correct to say iron is heavier than the wood.
Explanation:
It's because the density of iron is more than wood. What is this mean is iron the space between iron molecules in iron much less than as that of wood. So in iron there is more molecules than wood in same volume. More molecules means more mass, that's why iron is much heavier than wood for same volume.
Answer:
volume = 339008 cubic feets
weight = 25397.253 pounds
Explanation:
a) 1 feet = 3.2808 m
volume = length×breath×height
(40*3.2808)*(20*3.2808)*(12*3.2808
=339008 cubic feets
b) weight = volume * density
= (40*20*12)*1.20
= 11520 kg
= 25397.253 pounds
