Subject :NSO Class : Class 6
Read the given paragraph.
X is a process accomplished by air that helps in
increasing number of plants and their widespread
distribution whereas Y is a process aided by air that
helps in food formation by autotrophs for its continuous
supply to all living organisms. Identify X and Y and
select the correct option.
A X could be the process of transfer of pollen grains
from anther of flower of one plant to stigma of
flower of another plant.
B Seeds subjected to X have hairy or winged
structures and are light weighted.
C Y is performed by all green plants and cyanobacteria
and is the only process on Earth that adds oxygen
to air.
D All of these