Apower plant supplies 1,100 megawatts of power to the electric grid. how many joules of energy does it supply each second?

The answer is it will supply 1.1 x 10⁹ J of energy each second.
we can calculate this by using the following equation;
P = W/t 
W = P x t 
and by work energy relation;
E = W = P x t
1 watt = 1j/s
1megawatt = 1000000 = 10⁶ j/s
E = 1100 x 106 x 1 
E = 1.1 x 10⁹ J

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.

Idont understand the question