Question

11. Which organ in the human body does both - digestion as well as absorption of digested in
d. all of these
d. all of these
a. stomach
b. small intestine
12. A thermos flask prevents loss of heat by
a. conduction. b. convection.
c. radiation.
13. The chemical name of caustic soda is
a. sodium hydroxide.
b. ammonium hydroxide.
c. potassium hydroxide.
d. magnesium hydroxide.
14. The reaction MN + OP → MP + ON is a
a. combination reaction.
b. decomposition reaction.
c. single displacement reaction.
V. double displacement reaction.
15. It is very hot near the equator because
a. sun rays strike vertically.
b. sun rays travel through lesser thickness of the atmosphere.
c. days are longer.
d. all of these
HALF-YEARLY TEST PAPER • 116​

Answer 1

Answer:

15.ans.It is very hot (bas itna hi pata ha sorry for that because I am in low class then you)

Answer 2

Answer:

11) stomach

12) ans-(conduction ).... explanation:The vacuum between the glass walls prevents heat loss by preventing radiation. Hint: A vacuum flask or thermos flask is designed so that it will not allow heat loss by any means of conduction or radiation. The vacuum prevents the heat loss by conduction because vacuum is a bad conductor of heat.

13) sodium hydroxide

14) double displacement reaction

15) sun rays strike vertically

hope this helps u ❤️❤️