Question

A. Fill in the blanks.
than solid fuels.
1. Gaseous fuels have higher
2. The
zone of the candle flame is hottest.
3.
is an example of slow combustion.
4. Carbon monoxide is
harmful than carbon dioxid
5. Oxides of
cause lung congestion.​

Answer 1

Answer:

1) calorific value, 2) blue zone

Explanation:

3) nesxt answer i can give you when you mark me as brainlist