Question

A community needs low-cost electricity for homes and businesses. Their options for providing the electricity are a new power line from a distant hydroelectric dam, a large solar array, and a new coal-burning power plant.Which information best supports building a solar array based on a cost-benefit ratio?A. The solar array requires more maintenance than the power plant or the dam.B. The coal-burning power plant and power line are less expensive to build than the solar array.C. The overall price of a unit of electricity the solar array produces is lower than in the other solutions,D. The energy from the solar panels is nonrenewable, while the energy from the dam and the coal plant is renewable.

Answer 1

Ecology: Resources

In this question, they are asking us to pick the information that favors the construction of a solar array over the hydroelectric dam and the coal-burning power plant.

Let's look at each statement:

A. The solar array requires more maintenance than the power plant or the dam.

In this case, the statement gives information against the solar array.

B. The coal-burning power plant and power line are less expensive to build than the solar array.

Here it says that the solar array is more expensive, so is also against it.

C. The overall price of a unit of electricity the solar array produces is lower than in the other solutions,

In this option, it says that it's cheaper to produce electricity using the solar array so is in favor of the solar array.

D. The energy from the solar panels is nonrenewable, while the energy from the dam and the coal plant is renewable.

Here it says that the energy from solar panels is nonrenewable, which is against the solar array, but also false because solar energy is considered renewable energy.