Questions

A ball rolling along the ground gradually slows down and finally comes to rest is due to ________.

Choose the word with the correct spelling.

Which cell disorder in our body is responsible for colour blindness?

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.
 
Many lost dogs ______ been given back to their owners

Employment in agriculture comes under

Which of the following cannot be used for making lenses?

Which instrument is used for photographing the Sun?

Major portion of the earth's crust is mainly constituted by