GENERAL KNOWLEDGE: Famous Greek sculptures?

Questions

Term applied to the profession in which a knowledge of the mathematical & natural sciences, gained by study, experience, & practice, is applied to the efficient use of the materials & forces of nature?

Term for the role the atmosphere plays in insulating & warming the earth's surface?

Term indicating the hydrogen ion concentration of a solution, a measure of the solutions acidity?

Term meaning `rest' which titled a posthumous RAH retrospective?

Term originally meaning any kind of bird, & later applied chiefly to edible species?