Question

it's of chemistry........​

Answer 1

30) flash freezing is the process whereby objects

are frozen in just few hours by subjecting them to cryogenic, temperature or thought direct contact with liquid nitrogen at-196°C(-380.8°F)

Answer 2

(1) science is the pursuit and application of knowledge and understanding of the natural and social World following a systematic methodology based on evidence.

(2) A method of procedure that has characterized

natural science since the 17th century, consisting in systematic observation, measurement, and experiment, and the formulation, testing and modification of hypothesis.