Answer:
letter A thanks for the points
Approximately 752 miles (or 1210 km)
Ecosystem Energy
Nearly all of the energy that drives ecosystems ultimately comes from the sun. Solar energy, which is an abiotic factor, by the way, enters the ecosystem through the process of photosynthesis
The energy input, or energy that enters the ecosystem, is measured in Joules or calories. Accordingly, the energy flow is also called calorific flow.
A weakness of the sociological approach is that findings from studies cannot be generalized or extrapolated to the wider population. Sociological approaches often involve studies on certain types of groups that do not represent an entire population. For instance if you conduct a study on the effects of media on political views, and the sample you use are only university students, the findings are not representative of non-university students.
