Questions

Select the word with the correct spelling.

If an atom has atomic number 10 and mass number 23, then what will be the number of protons and neutrons in an atom respectively?

With which of the following body organ is 'pace-maker' associated?

In the following questions, 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.

Children need to be taught the importance of hygiene early on so that it becomes a _____. Children are the most _____ to hygiene-related disorders like skin issues, rashes, infections, wounds, etc. Teach them early on about what to _____. Teach them that taking a few _____ measures to prevent infections and diseases is _____.

Teach them early on about what to _____.

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the fourand indicate it by selecting the appropriate option.

Happy thoughts release hormones that work for our well-being and negative thoughts release hormones that make us ______.

The elements known as primary nutrients for plants

Amartya Sen was awarded the Nobel Prize for his contribution to 

The area of a semicircle is 308 sq.cm. Calculate its perimeter (in cm)