Question

Mid term / Summative Assessment 1 - Examination 2019
Science
Std. IX
Time: 2 hr. 45 min.
Marks: 70+20=90
I. Choose the correct answer from the four options given below.
1x8=8
1. Arrange the following in the increasing order of their density.
a) air, exhaust gas, cotton, water, honey, iron b) exhaust gas, air, cotton, water, honey, iron
c) air, exhaust gas, cotton, honey, water, iron d) air, exhaust gas, cotton, honey, iron, water
2. Cloud is an example of
a) liquid dispersed in agas b) solid dispersed in a gas
c) liquid dispersed in a solid
d) solid dispersed in a solid
3. Which of the following organelles have double membrane?
a) Chloroplast b) Ribosome
c) Lysosome d) vacuole.
4. Outermost protective layer of the different parts of the plant is
a) Epidermis
b) meristamatic tissue c) endodermis d) root hairs
5. The unwanted plants are known as
a) grasses
b) shrubs
c) weeds
d) Pests
6. Distance travelled by a body cannot be calculated in the following equation
a) V=u+at b)2as=v2-u? c) s=ut+ "zat? d) v2=2as-u?
7. In the given picture the process is related to
a) Newtons first law
b) Newtons second law
c) Newtons third law d) None of the above
8. The force of attraction of the earth on an object is known as the
a) Mass
b) weight
c) friction
of that object.
d) motion​

Answer 1

Answer:

1 first option c correct

Answer 2

Answer:

Explanation:

1.c

2.a

3.c

4.a

5.c

6.a

7.

8.d