Answer:
Option D
Solar energy
Explanation:
First of all, we need to understand where the various sources of energy come from before we can deduce the form of energy that can be produced quickly enough to match the human level of consumption.
Hydropower energy is energy from the water. It can be generated at any time of the day, as long as there is a constant water supply. Hence, it can match the human level of production.
Geothermal energy is energy from heated water from within the earth's crust. The supply is constant since the earth's crust is always hot. Hence, it can match the human level of consumption.
Coal is a fossil fuel that is densely packed with energy. It can be burnt at any time to meet the demand for energy. Hence, it can deliver energy quickly enough for human consumption.
Solar energy is the energy obtained from the sun. A lot of factors affect the amount of energy that can be got from the sun at any instance in time. They include:
1. the cloud cover at that particular moment
2. the time of the day
As a result of this, solar energy cannot be created quickly enough to match
humans' level of consumption.
