What primarily determines the carrying capacity of a population

What can be said about farmers in highly developed countries? a) they have little or no negative impact on the environment. b) they practice subsistence agriculture. c) they are able to incorporate polyculture into their farming practices. d) they utilize organic farming techniques on a regular basis. e) they rely on large amounts of energy from fossil fuels.

20 the main source of energy for our planet comes from the

Explain the causes and effect of damage to the genetic code.