4th Grade > Science
PLANTS MCQs
Total Questions : 40
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Answer: Option A. -> Winter crops
:
A
Crops sown in winters and harvested in spring are called Rabi crops. They are also known as winter crops. For example: wheat, beans, and legumes, etc.
:
A
Crops sown in winters and harvested in spring are called Rabi crops. They are also known as winter crops. For example: wheat, beans, and legumes, etc.
Answer: Option B. -> stomata
:
B
Stomata are small pores on the leaves through which gases enter and exit the plant.
:
B
Stomata are small pores on the leaves through which gases enter and exit the plant.
Answer: Option B. -> October - November
:
B
TheKharif cropping seasonis from July - October during the monsoon season. Theyinclude rice, maize, sorghum, etc
:
B
TheKharif cropping seasonis from July - October during the monsoon season. Theyinclude rice, maize, sorghum, etc
Answer: Option C. -> spines
:
C
∙ Desert is the hottest habitat hence preserving water becomes crucial if an organism needs to survive here.
∙ Hence leaves of cacti are modified into spines to prevent loss of water.
∙ Spines also help in the protection of cactus from the animals.
:
C
∙ Desert is the hottest habitat hence preserving water becomes crucial if an organism needs to survive here.
∙ Hence leaves of cacti are modified into spines to prevent loss of water.
∙ Spines also help in the protection of cactus from the animals.
Answer: Option A. -> autotrophs
:
A
The organisms which prepare their own food are called autotrophs. Green plants are examples of autotrophs.
:
A
The organisms which prepare their own food are called autotrophs. Green plants are examples of autotrophs.
Answer: Option B. -> Teak
:
B
Teak does not shed itsleaves in winter. It grows in hilly areas and are evergreen in nature.
:
B
Teak does not shed itsleaves in winter. It grows in hilly areas and are evergreen in nature.
Answer: Option A. -> Rabi crops, Kharif crops
:
A
Plants of the same kind that are grown in a particular area or region at a particular season are called crops. On the basis of seasons, the crops in India is divided into 2 types - Rabi crops and Kharif crops.
:
A
Plants of the same kind that are grown in a particular area or region at a particular season are called crops. On the basis of seasons, the crops in India is divided into 2 types - Rabi crops and Kharif crops.
Answer: Option A. -> Pine tree
:
A
Conifers are cone-bearingplants. Cones bear the seed inside them. Example of conifers are Pine, Redwood and Fir.
:
A
Conifers are cone-bearingplants. Cones bear the seed inside them. Example of conifers are Pine, Redwood and Fir.
Answer: Option A. -> Reproduction
:
A
A flower is thereproductive part of the plant. A flower develops into fruitand seeds after fertilization.
:
A
A flower is thereproductive part of the plant. A flower develops into fruitand seeds after fertilization.
Answer: Option A. -> Mangroves
:
A
Mangrove trees grow in saline habitat like swamp. These plants develop special adaptations that allow them to survive in water, a special kind of roots called aerial roots which grow above the ground.
:
A
Mangrove trees grow in saline habitat like swamp. These plants develop special adaptations that allow them to survive in water, a special kind of roots called aerial roots which grow above the ground.