Question

Multiple Choice Questions:
1.
Which of the following is a man-made
change?
(a) Burning of fuels
(b) Eruption of volcanoes
(C) Change of seasons
(d) Growing of trees
2. Which of the following is a physical change?
(a) Breaking of stick
(b) Rusting of iron
(c) Curdling of milk
(d) Bursting of crackers
3.
Beating of heart is a
(a) Periodic change
(b) Exothermic change
(c) Endothermic change
(d) Slow change
Forest fire is a
(a) Fast change
(b) Undesirable change
(c) Periodic change
(d) Reversible change
When urea is dissolved in water, heat is
5.
(a) Absorbed
(b) Evolved
(c) No change
(d) None of these​

Answer 1

Answer:

1 a 2 c 3 a 4 b 5d . Thanks for asking

Answer 2

Answer:

1 = c

2 = a

3 = a

4 = b

5 = a

I think it is the right answer