Question

Snails shells are often black and brown. How might this colouring be useful to the snail?​

Answer 1

Answer:

The snails uses their colour to evade predators -- i.e. as camouflage -- and to avoid overheating in open environments. But surveys of the snails have shown that it's not always that simple -- different coloured snails are found across a range of environments.

Explanation:

Answer 2

Answer:

Since the snail's shell is either black or brown it will help the snail to camouflage in surroundings like sand and mud. This will protect the snail from predators such as eagles and other birds.