The equator passes through which of the following continents ?

Days and Nights are equal throughout the globe when the sun is above

Seasonal unemployment refers to

Which of the following gases is used for refrigeration ?

Aspirin is the common name of

Decrease in white blood cells results in

Less dew is formed on cloudy nights because

Mouth and foot diseases in cattle are caused due to

In summer, man with excess perspiration feels weak, because of the

When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because