Question

1) Alligators and Snakes are hunted for their

a) Skins b) Tusks c) Fur d) Shells

2) Which are the primary sites of protein synthesis.

a) Lysosomes b) Vacuole c) Ribosomes d) Mitochondria.

3) After fertilization, the Ovum implants itself in the

a) Uterus wall b) Vagina c) Vas deferens d) Ovary.

4) When an image is formed by a plane mirror, the

a) image size is the same as the object size.

b) Image size is Greater than the object size.

c) Image size is smaller that the object size.

d) Image size depends on the distance of the object from the mirror.

5)Sound waves with a frequency below 20 Hz are called.

a) Infrasonic waves. b) Ultrasonic waves

c) Ultrasound d) None of these

6) Which of the following is used for making light weight sails?

a) Polyster b) Nylon c) Royon d) Polystyrene.

7) In electrorefining of mentals, the impore mental is taken as

a) the anode b) the cathode c) either anode or cathode

d) the electrolyte

8) Which of the following responsible for the loss of biodiversity?

a) Desturction of forests b) Killing of animals

c) Pollution d) All of these​

Answer 1

Answer:

1 skins

2 Ribosomes

3 Uterus wall

4 image size is same as the object size

5 Infrasonic waves

6

7 anode

8 all of these

Answer 2

Answer:

1st answer skin,2nd answer lysosomes,3rd answer ovary,4th answer 1st option,5th answer infrasonic,6th answer polystyrene,7th answer electrolyte,8th answer pollution