Question Text
Question 3 :
The number of oscillations completed by a sound wave in one second is called as its
Question 4 :
The sounds which gives us an irritating experience are called as
Question 7 :
The minimum temperature required for the combustion to take place is called as;
Question 9 :
Music helps us to concentrate on our work and also to reduce our pressure.
This statement is;
Question 11 :
Fire Extinguisher device helps to control or stop the fire. This statement is -
Question 13 :
LPG is considered as an Ideal Fuel for cooking in home and hotels. This statement is ;
Question 14 :
Adolescence is the period of
(a) 5 to 10 years
(b) 11 to 19 years
(c) 22 to 28 years
(d) 30 to 40 years
Question 15 :
When a sperm having X-chromosome fuses with the ovum, the child born will be
(a) male
(b) female
(c) male as well as female twin
(d) it depends on the chance of fusion
Question 16 :
How many pairs of Chromosomes are found in nuclei of their cells?
(a) 22 pairs
(b) 23 pairs
(c) 24 pairs
(d) 25 pairs
Question 17 :
The animals that give birth to young ones are known as
a) Oviparous
b) Viviparous
c) Both
d) None of these
Question 18 :
Tadpole is the developing stage of which of these
a) Dogs
b) Cats
c) Frogs
d) Humans
Question 19 :
Where does the fusion of male and female gametes generally take place?
I. Fallopian tube
II. Ovary
III. Uterus
IV. Zygote
Question 20 :
The cell formed after fertilisation is called
I. Foetus
II. Zygote
III. Embryo
IV. None of these
