Question

Which of the following statements about current world electricity production is true?

1) ⋅ is not possible.
2) ⋅ accounts for less than 15 percent of current world electricity production.
3) ⋅ has been achieved, but is not yet practical.
4) ⋅ has been increasing for the past seventy years.

Answer 1

Solar and wind energy contributions to global electricity production are increasing. Wind accounts for 4.8% and solar for 2.1%, while renewable energy sources contribute approximately 10% to U.S. energy needs.

Step-by-step explanation:

Among the statements about current world electricity production, the one that is true according to recent data is that solar and wind contributions are increasing. Wind energy accounts for about 4.8% of global electrical production and solar energy makes up about 2.1% of the world's electricity.

Hydroelectric power, while abundant, cannot expand beyond approximately 10% of current global demand. Moreover, solar potential is vastly underutilized, given that only 1.2% of global energy and 2.3% of U.S. electricity comes from solar, even though solar energy is abundant.

Furthermore, the contribution of renewable energy to the United States' energy mix is about 10%, with the bulk being hydroelectric power.

The statement that is true about current world electricity production is option 4) ⋅ has been increasing for the past seventy years.]]>

The information provided indicates that renewable energy sources such as wind and solar energy have been contributing to global electricity production and their contributions are increasing. The data shows that wind accounts for about 4.8% of electrical production globally and solar power is at around 2.1% of global electricity.