Question

1. Coal and wood are examples of
(solid fuels/liquid
fuels)
2. A blue flame is also known as
flame.
(luminous/non-luminous)
3. Glass and sand are
(combustible/non-combustible)
4. Anthracite is a type of
(petroleum/ coal)
5. Refining of petroleum is done by
(fractional
distillation/rapid combustion)​

Answer 1

Answer:

1. solid fuels

2. non-lumious

3. non-combustible

4. coal

5. fractional distillation

Answer 2

Answer:

1.solid fuels

2. non-luminous

3.non-combustible

4. coal

5.fractional distillation