Questions

Ozone layer depletion is one of the most serious problems faced by our planet earth. Substances that Deplete the Ozone Layer (ODS) emission are responsible for ultraviolet radiations from the sun break them to release chlorine (from CFCs) and bromine (from methyl bromide and halons).

A colon is used to connect two sentences when the second sentence expands, illustrates, explains, summarizes, or sharpens the first. Both sentences should be complete, and their content should be very closely related.

Example:

This girl has two favorite hobbies: watching movies and seeing how long she can hold her breathe.

Marasmus usually is associated with a deficiency of Calories.

England has hosted the ICC World Cup most times. In 1975, 1979, 1983, 1999 & 2019 it hosted.

A snowman is a cold man without a soul, if there is warmth in it, it slowly will kill him.