Question

b) Becomes cold by the process of convection
d) Does not become cold
c) Becomes cold by the process of radiation
4. Raw mango is sour in taste due to presence of
a) Tartaric acid b) Citric acid c) Formic acid d) Oxalic acid
5. Which of the following statements is incorrect for a chemical reaction?
a) Heat may be given out but never absorbed b) Sound may be produced
c) A colour change may take place
d) A gas may be evolved
6. Which of the following statements is incorrect for Penguins?
a) They huddle together
b) They cannot swim
c) They have webbed feet
d) They have streamlined body
The lightning conductor used to protect high rise buildings is made of
a) Ebonite b ) Aluminium C) Steel
d) Copper
8. In which horizon of soil more amount of minerals are found?
a)
Bedrock
b)
A-horizon
c)
C-horizon
d)
B-horizon
5× 1 =
II.
FILL IN THE BLANKS
9.
Bile juice is secreted by the gland​

Answer 1

4:oxalic acid,c itric acid

6:they cannot swim

8:A-horizon

5*1=5

Answer 2

Explanation:

4.oxalic acid and citric acid

5.heat may be given out but never acid

6.They cannot swim

8.A-Horizon

5*1=5

ll.bile juice is secreated by liver and stored in gall blader