* What is not a drawback in using solar energy?
a. The total amount of solar energy that reaches the Earth is too low to be useful.
b. The solar energy that reaches the Earth is diffuse and hard to collect.
c. Solar cells and other equipment are expensive.
d. Sunlight is not always available, depending on season and time of day.

What is a limitation of using a chemical formula, such as c6h1206, to represent a compound? the chemical formula does not show the types of elements that make up the compound. the chemical formula does not show how the atoms are connected to one another the chemical formula does not show the number of atoms of each element in a molecule. the chemical formula does not show the chemical symbols of the elements in the compound