2. भूरा ग्रह दुखी क्यों था?
1 point
क. पानी की कमी के कारण
ख. लोगों ने उसका देखभाल नहीं किया था
ग. धन की कमी के कारण
घ. इनमें से कोई नहीं
3. प्रदूषणं कथं भवति?
1 point
(क) कृषिकार्येण
(ख) अस्वच्छीकरणेन
(ग) वृक्षारोपणेन
(घ) किमपि न।
4. Present age of the king is double the age of his son , what will be the age of the king after five years if the present age of son is x years
1 point
(a) 2x – 5
(b) 2x + 5
(c) 2x
(d) None of these
1 point
Captionless Image
a. Conduction
b. Convection
c. Radiation
d. Vaporisation
6. The process by which transfer of heat takes place by the actual movement of particles from one part of the body to another part is called ……….
1 point
a. Conduction
b. Convection
c. Radiation
d. vaporization
7. The process by which heat comes from sun to the earth is …………..
1 point
a. Conduction
b. Convection
c. Radiation
d. Vaporization
8. _________________ is the flower which grows in blue colour when the soil is acidic and in basic soil it is red.
1 point
a) Eucalyptus
b) Xanthium
c) Gladiolus
d) Hydrangea
9. Soil that is too basic can be treated with ___________ for neutralisation.
1 point
a) Ammonia based fertilisers
b) Calcium sulphate
c) Sodium hydroxide
d) Lime stone
10. The presence of which components would ensure that the plant does photosynthesis?
1 point
a) water, oxygen, chlorophyll and sunlight
b) water, carbon dioxide, oxygen and sunlight
c) carbon dioxide, sunlight, chlorophyll and water
d) water, oxygen, carbon dioxide and sunlight
11. Why does the Venus fly trap eat insects?
1 point
a) Fertilization process.
b) Provides nutrients to the plant.
c) Dispersal of seeds.
d) Provides carbon dioxide to the plant.
12. Leaves are green due to the presence of a green coloured pigment called chlorophyll. Which of the following is the main function of chlorophyll?
1 point
a) To absorb carbon dioxide from the atmosphere.
b) To absorb water and minerals from the soil.
c) To give greenish colour to the leaves.
d) To trap sunlight.
Answers
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Answer:
To absorb carbon dioxide from the atmosphere
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Answer:
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