Summarise the uses of oxygen, carbon, and nitrogen in everyday life.
Answer variants:
proteins
oxygen
growth of plants
carbohydrates
Iron
minerals
able to survive
fats
Carbon
fertilisers
Nitrogen
building block
We breathe in
, which is a non-metal, and without it, we would not be
.

is essential in everyday life because it is the
of all life forms. It is a key component of
,
, and
, which are necessary for growth and energy.

is used in the manufacturing of
and other chemicals. It is an essential nutrient for the
.