In the circuit the potential difference between a and b is

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

He sandals were out in the sun so the got hotter. which is why her feet felt hot.