Because the compounds<span> that make up </span>air<span> e.g. oxygen (o2), Carbon dioxide (co2) and water is a compound because the composition of water is fixed, H2 and 02 react to form water. </span>
Answer:
litmus paper turns red under acidic conditions
Explanation:
Carbon bound in fossil fuels has different isotopes than carbon in atmosphere. Fossil fuels are underground and cosmic rays do not affect carbon in them same as atmosphere carbon. Carbon in fossil fuels that is underground longer than ten thousand years has only C-12 isotope and not C-14.
As temperature rises, molecules tend to move at a faster rate meaning that the energy has increased.
Explanation:
beryllium, calcium, strontium, barium, and radium; they are in the same group of table.