B) True or False :- 2)
.
2. Amphibians can live in air and in water.
C) Match the following :- (3)
false
'A' Group
B' Group
Answer
1) Microbes
a) Rain
2) Water vapour
b) Unicellular
3) Amoeba
c) Generation of soil
22.A) Answer the following questions :- (3)
1) Give two examples of annual plant.
ns
Write any one characteristic of herbs.
Answers
Answer:
Chapter 1
MULTIPLE CHOICE QUESTIONS
1. c 2. b 3. b 4. c
5. a 6. a 7. d 8. a
9. c 10. b 11. b
VERY SHORT ANSWER QUESTIONS
12. Seed drill, because it is a modern agricultural implement unlike
the others which are all traditional tools.
13. The field will be watered, tilled and ploughed before sowing seeds.
14. (i) False: Apart from good quality seeds, using appropriate
agricultural practices are important for getting higher
yield.
(ii) False: It actually enriches the soil.
(iii) False: Some crop plants need transplantation.
(iv) False: Rhizobium (bacteria) present in the cells of root
nodules of leguminous, plants fix nitrogen.
(v) True.
15. October to March.
16. Loosening the soil/maintaining high moisture levels in soil.
SHORT ANSWER QUESTIONS
17. Kharif : Rice or Soyabean, Rabi : Pea or Wheat.
Pea/Soyabean are legumes that will fix nitrogen with the help of
Rhizobium.
Answers
12/04/18
ANSWERS 111
18. (i)-c; (ii)-a; (iii)-b; (iv)-d
19. Crops cultivated without using any chemicals like fertilisers,
pesticides, weedicides etc. are called organic foods.
20.
Living : Seed, Earthworm, Rhizobium, Microbes, Ox
Non living: Plough, Urea, NPK, Manure, Hoe
21. (a) Seed drill.
(b) The advantages are,
(i) seeds are sown at a uniform distance and depth to avoid
over crowding.
(ii) after sowing, seeds are covered by soil which prevent them
from being eaten by birds.
(iii) It saves time and labour.
22. (a) Animal husbandry.
(b) Animals are provided with proper food, shelter and care.
23. Khariff : Maize , Paddy, Groundnut, Cotton.
Rabi : Mustard, Pea, Wheat, Gram.