How will you distinguish between Hexagonal close packing and cubic close packing. (3D)

Distiguish between hexagonal close packing and cubic pakcing.

How will you distinguish between terminal alkyne and nonteminal alkyne.

Distinguish between: Open and closed circulation.

What do you mean by polarisation of light ? How will you distinguish between polarised and non polarised light ?

Explain hexagonal close packing in three dimensions.

Distinguish between the following: Open and closed vascular bundles

How do you distinguish between solid , liquid and gaseous states ?

explain close packing in one dimension.

How are we different : Distinguish between sandy soil and silt soil .

How do you distinguish between hypogeal germination and epigeal germination? What is the role of cotyledon (s) and the endosperm in the germination of seeds?