Question

MULTIPLE CHOICE QUESTIONS
1) what is the process of loosening and softening the soil is called *
tilling
ploughing
both
none of these
2)Rabi crops are sown in *
May and june
October and November
Any time
March andApril
3) Farmers with small holdings of land do the separation of grain and chaff , this process is called *
threshing
winnowing
weeding
blowing
4)If the harvested grains are to be kept for longer time, they should be safe from *
Moisture
Insects
rats
All of the above
5) Which of the following is the microorganism that grows on bread *
fungus
protozoa
bacteria
algae
6)Which of the following reproduce only inside the cells of the host organism *
bacteria
viruses
protozoa
fungus
7)Microorganisms live in all types of environment ranging from *
ice cold climate
deserts to marshy lands
hot springs
all the above are true
8)Citrus canker is a plant disease caused by *
fungi
bacteria
virus
none of the above
9)Mushrooms belong to *
algae
virus
fungi
none of these
10)Scientist who discovered the fermentation *
alexander fleming
louis pasteur
john mendal
charles darwin
11) Pencillin is a *
fungus
algae
bacteria
yeast
12)The first man made fibre is *
nylon
rayon
esters
cotton
13) Many small units combine to form a large single *
monomer
dimer
polymer
timer
14) Which is the popular polyester that can be drawn into very fine fibres and can be woven like any other yarn *
terylene
ethylene
methylene
polythene
15)Which of the following is a special plastic on which oil and water do not stick. It is used in non-stick coating on cookware's. *
bakelite
nylon
terylene
teflon
16)What is the property of metals by which wires can be drawn from them called *
ductility
malleability
sonorous
lustrous
17)What property do non metals have *
brittle and non malleable
non ductile and non sonorous
bad conductors of heat and electricity
all the above
18)Metals react with sodium hydroxide to produce *
oxygen gas
hydrogen gas
water
none of these
19)Which of the following is the most reactive metal *
silver
zinc
Al
K
20)The nature of metal oxide is *
acidic
basic
neutral
all of these​

Answer 1

Answer:

1 both

2 b

3 b

4 All of the above

5 d

6 b

7 All of the above

8 b

9 c

10 b

11 c

12 b

13 c

14 a

15 a

16 a

17 d

18 b

19 b

20 b

Answer 2

Answer:

1. both

2 October and November

3 threshing

4 All of the above

5 fungus

6 viruses

7 all the above are true

8 bacteria

9 fungi

10 louis pasteur

11 fungus

12 rayon

13 polymer

14 terylene

15 Teflon

16 ductility

17 all the above

18 hydrogen gas

19 K

20 basic