4th Grade > Science
PLANTS MCQs
:
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.
:
C
The green leaves of plants help produce food with the help of sunlight and chlorophyll. This process where green plants make their own food is called photosynthesis.
:
A
The lotus plants have hollow and spongy stem filled with air. This makes them light and helps them to float on water.
:
A
A flower is the reproductive part of the plant. A flower develops into fruit and seeds after fertilization.
:
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.
:
C
Venus Flytrap is a type of carnivorous plant. They do carry out photosynthesis. But also derive nutrients by trapping and consuming insects.
:
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.
:
B
The Kharif cropping season is from July - October during the monsoon season. They include rice, maize, sorghum, etc
:
A
Conifers are cone-bearing plants. Cones bear the seed inside them. Example of conifers are Pine, Redwood and Fir.
:
B
Stomata are small pores on the leaves through which gases enter and exit the plant.