Question

Q. Choose the correct word.

1) The colour of the flame depends upon
a.Temperature.
b. Amount of air available. c. Nature of the substance burning     
d. All of these.

2) What burns in a candle flame?
a.Solid wax.
b. Liquid wax.
c. Wax vapours.      
d. Oxygen

3) Which is the main constituent of natural gas?
a.Oxygen
b. Petrol.
c. Methane.     
d. Carbon dioxide.

4.Which of these does the Tasmanian wolf belong to ?

a. Extinct species.
b. Threatened species. c. Critically endangered species.  
d. Vulnerable species.

5. Which of these is the longest cells in the human body?

a. Muscle cells.
b. Nerve cells.
c. Skin cells.      
d. Brain cells.​

Answer 1

Answer:

1 a

2 b

3 c

4 a

5 b

Explanation:

Hope will help

Answer 2

Answer:

1. d) all of the above

2. c) wax vapour

3. c) Methane

4 a) extinct species

5. b) Nerve cell