Question

Astus
swans fly (b).......
especially (c)..........
as geese, ducks and that
well-defined V formations, han
migrations. It is their method
with (f)......
......... another. As each bird flaps
(g)............wings, it creates uplift at the tip of its wing.
This reduces the air resistance (h)..........
the bird
tin
flying behind.
ore
Many large birds (a)...........
of conserving energy (d)................. that they can fly
long distances without (e)................... a break. The
V formation also helps birds to maintain visual contact​

Answer 1

Answer:

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