In his famous 1909 experiment that demonstrated quantization of electric charge, r. a. millikan suspended small oil drops in an electric field. with a field strength 0f 20 mn/c, what mass drop can be suspended when the drop carries a net charge of 10 elementary charges?

answer and explanation;

composition refers to both the types of minerals within a rock and the overall chemical makeup of the rock while texture refers to the size and arrangement of the minerals or grains that make up a rock. both composition and texture can be used to classify rocks, such as igneous rocks. texture describes how the rock became solid or crystallized from liquid, melted rock. composition of a rock describes the minerals that make up a particular rock.

Because its reliable.   there is no pollution  the chances of a radiation leak is low