Questions

Thermoset, or thermosetting, plastics are synthetic materials that strengthen during being heated, but cannot be successfully remouldedor reheated after their initial heat-forming. This contrasts withthermoplastics, which soften when heated and harden and strengthen after cooling. Thermoplastics can be heated, shaped and cooled as often as necessary without causing a chemical change, while thermosetting plastics will burn when heated after the initial moulding.

We know that, 

Earth is known as Watery planet.

Neptune is known as Blue planet. 

Answer:  T

Explanation:   In each row, add together the numerical values of the pairs of letters to the left and right, then calculate their difference, putting the letter with this numerical value in the centre space.

The chemical name of common is sodium chloride. Its chemical formula is NaCl.

The study of volcanoes, lava, magma, and related geological, geophysical and geochemical phenomenas is called Volcanology.

Enzymes are macromolecular biological catalysts. Enzymes accelerate chemical reactions. The molecules upon which enzymes may act are called substrates and the enzyme converts the substrates into different molecules known as products.