Question

Choose the correct answer -
1 Which metal can be cut by knife-
a)Hg
b) Na
c) Ag
d) Au
2. Respiration is -
a) Reduction b) oxidation
c) Circulation
d) all the above
3. Measurment of resistance is done by-
a) watt
b) volt
c) ohm
d) ampere
4. The removal of short sightedness is done by using
a) Concave lens b)covex lens c)bifocal lens
d) all the above
5. The cause of blue color of sky is -
a) refraction of light b) scattering of light c) dispersion of light d) reflection
fill in the blanks-
1. Carnivores take their food from---
2. Noice produces .........
pollution
ar producers
4. Distilled water is
of electricity
5. World environment day is celebrated on
Totoh the columns
3.​

Answer 1

Answer:

Sodium can be cutted through

Answer 2

Answer:

M.C.Qs

1 :- Na

2:- Oxidation

3:- ohm

4:- Concave lens

5:- Scattering of light