The following one is an endemic species of India

Thermometer is used to measure

The following one is used to measure time in the laboratory

The following one is used to measure liquids in laboratory

Heliocentric theory was proposed by

“History of Science” was written by

“The theory of gravitation” was discovered by

‘Supersonics’ are

Marigold seeds sprout best in a combination of which soil?

The primary or fundamental step in scientific thinking