Question

i) A fuse is made of a wire which has a ……….. melting point.
ii) The heating coil of an electric geyser is made up of ………
iii) An ……… clock is the most accurate clock.
iv) The time period of a pendulum depends upon its ……….
v) End products of aerobic respiration are ……….., ………. and energy.
vi) Under normal conditions, a person breathes ……… times per minute.
vii) When an acid reacts with a base, ……….. is formed along with water.
viii) Acids turn ……….. litmus to ……… , whereas bases turn ……… litmus to ……
ix) Mixing of iron and sulphur is a ……….. change, whereas heating of iron and sulphur is a ……….. change. x) ………… is the largest gland in human body

Answer 1

Answer:

1. high resistance and low melting point.

2. fine coil of nichrome (NiCr) resistance heating alloy wire.

3. atomic clocks.

4. the length of the pendulum.

5. carbon dioxide and water.

6. 12 to 16.

7. salts substances.

8. chemical change.

9. liver.

sorry if I'm wrong.

Answer 2

Explanation:

(i) low

(ii)nichrome

(iii)atomic clock

(iv)length

(v)carbondioxide(co2),water(H2O),energy

(vi)12 to 20

(vii)salt

(viii)blue to red ,red to blue

(ix) no,chemical

(x) liver