To determine how much energy the source provides to one square meter of the Earth per year, we need to consider the value provided in the options you mentioned.
If we assume that one of these values represents the energy provided to one square meter, we should consider the energy per square meter.
Given the values you listed, it's common to express energy in terms of kilocalories (kcal) over a period (in this case, per year).
Since the values are already given as kcal per year, the total energy provided to one square meter of the Earth per year would simply be the value given.
- 3,190,000 kcal (most likely refers to a larger area or is an incorrect figure for one square meter)
- 4,000 kcal
- 470 kcal
- 24 kcal
Among the choices, if you are looking for the amount of energy typically received by one square meter from solar radiation, a reasonable estimate is in the range of approximately 4,000 kcal to 5,000 kcal annually for a location with good sun exposure.
If you meant to ask which of these figures represents the energy received at one square meter most accurately, then 4,000 kcal could be the closest to the energy received by a solar panel or a well-exposed surface over the course of a year.
If you need further assistance or context for these numbers, feel free to ask!