Questions

What is the pH value of human blood?

According to an early Indian philosopher everything is made up of ___ basic elements.

Name the noble gas which is placed in the third period and eighth group of the Modern Periodic table.

How many groups and periods are present in the Modern Periodic Table?

Lungs are the primary organs of _________.

Which of the following reproduce both, sexually as well as asexually?

____ tissue changes the diameter of a blood vessel.

In the following passage some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The _____ of energy in India are met from both commercial and non commercial sources. The most _____ sources of energy today are coal and natural gas, hydro
electricity and nuclear power. On the other hand, firewood, cow-dung cakes and vegetable waste etc. _____ non commercial forms of energy. While non commercial
forms of energy _____ demand, coal is the _____ source of commercial energy in India.

and non commercial sources. The most _____ sources of energy today are coal and natural gas