Water molecules attracted to other water molecules. this property called?

Cohesion

Explanation:

Cohesion is the force of attraction between molecules of the same substance. Hence, it occurs between water molecules attracted to other water molecules.

Cohesion however, differ markedly from adhesion, which is the force of attraction between molecules of different substances like water molecules and glucose molecules.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.