Question

Q. Multiple Choice questions.

1. Which of the following is a kharif crop?
a) Rice
b)mustard
c) wheat
d) sugarcane
2. Growing different crops alternately on the same land is technically called
a) Crop alternation b) crop revolution c) Crop rotation
d) Crop change
3.Identify the synthetic fibre which resembles wool's.
a) Rayon
b)Terylene
c) Nylon
d) Acrylic
4. Which of the following is not thermoplastics
a)Acrylic
b)Polyethylene
c) polystyrene d) melamine
5. PET is a form of
a)Steel
b) Glass
c) polyester
d) nylon
6. Which of the following is a disease caused by protozoans ?
a)Tuberculosis
b) Polio
C) Malaria
d) Typhoid
7. Alcohol is produced with the help of
a) Virus
b)Yeast
c) algae
d) none of these
8. The non metal which can conduct electricity
a) Diamond
b) Silver
c) Graphite
d)lodine
9. Which acid will form if we add phosphorus pentoxide in water
a) Phosphoric acid
b) phosphorus acid c) both a and b
d) none of these​

Answer 1

Answer:

1.wheat

2. rotation crops

3. Acrylic

4. melanie

5. polyester

6. malaria

7. yeast

8. graphite

9. phosphoric acid

Explanation:

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