Question

The Latin word 'australis' means:​

Answer 1

Explanation:

The word australis is Latin for austral, which simply means “southern.” The aurora australis appears in many colors ranging from green and pink to red, yellow, and blue. ... And the aurora australis is not the only aurora on Earth.

Answer 2

Explanation:

Ans. 1. The female silk moth lays pale yellow eggs on the leaves of a tree (

such as mulberry tree).

2. The eggs hatch in two weeks time to form worm-like larvae called

caterpillars or silkworms. The silkworms feed on the leaves of mulberry trees

and grow bigger in size. During the larval stage, the silkworms shed their skin

four times while they grow. Silk is formed in liquid form in the two glands in

the silkworm’s head.

3. Now, the silkworm is ready to enter the next stage of its development

called pupa. Each silkworm begins spinning a cocoon by moving its head in

the pattern of figure of eight(8). During these movements of the head, the

silkworm secretes silk in liquid form through the tiny opening in its head.

Liquid silk solidifies on contact with air and becomes silk fibre. Within 2-3

days, the silkworm completely covers itself with silk fibres.

4. When the pupa (enclosed in a cocoon) develops fully to form an adult silk

moth, then the cocoon splits up and a beautiful silk moth comes out.