The asthenosphere occupies a majority of the mantle. t. f.

False

Explanation:

The total depth of mantle is 1800 to 2900 kilometers. Mantle accounts for 80% of the total earth and Iit is made up of two layers – lithosphere and Asthenosphere. Asthenosphere lies at the depth of 80 and 200 kilometers which is just 4.4% to 6.89 % of the total depth of mantle. From this it can be visualized than asthenosphere do not constitute even half of the mantle and therefore the statement “The asthenosphere occupies a majority of the mantle” is false

the principles and empirical processes of discovery and demonstration considered characteristic of or necessary for scientific investigation, generally involving the observation of phenomena, the formulation of a hypothesis concerning the phenomena, experimentation to test the hypothesis, and development of a conclusion that confirms, rejects, or modifies the hypothesis.