Question

Write ashort note on :-
(a) Migratory (b) Red Data book (c) uses of ultrasounds​

Answer 1

Explanation:

migration : The mass movement of animals in search of food , water or favourable weather conditions to survive or breed is called migration.

Red Data book: It is a collection of lists which consists of species whose continued existence is threatened.

uses of ultrasound :

1) used in ultrasonography

2) detection of cracks in metal blocks

3) acts as effective cleaning agent

Hope this helps you!!

Answer 2

Explanation:

migratory birds are those that move from one part of the world to another, according to the season. Some of the wetlands of india are popular with migratory birds.

the red data book is the state document established for documenting rare and endangered species of animals plant and fungi as we as some local sub- species that exist within the territory of the state or country.