In a high school laboratory, which of the following constitutes an experiment? I. learning to use a microscope by examining fixe
d specimens on slides II. being able to examine swimming protists under a microscope III. extracting pigments from plant leaves and separating the types of pigments for identification IV. preparing root tips for examination by staining them
An experiment is scientific procedure to test a hypothesis and to demonstrate any scientific procedure to prove something. In high school laboratories there are experiments constitutes scientific methods that helps in demonstrate or prove or existence of something.
Extracting various pigments from the leaves of plants and identifying them by separating from it, is the best example of the high school laboratory experiment among all the options.
The asthenosphere lies 80-200km below the surface under the lithosphere. Convection also occurs in the asthenosphere. The asthenosphere is mostly made of up rock material (magnesium and iron silicates). The asthenosphere makes up 6% of the mantle and lets the lithosphere move.
