1.

Palak leaves are the rich source of  

2.

Which of the following plants is a source of biodiesel?  

3.

Dental caries are due to  

4.

The speed of light with the rise in the temperature of the medium  

5.

Stem cuttings are commonly used for re-growing  

6.

The hardest substance available on earth is  

7.

Washing soda is the common name for  

8.

The gas predominantly responsible for the global warming is  

9.

Persons with which blood group are called universal donors  

10.

Vaccines are substances that confer immunity against________.