Caves being formed by acid rain dissolving underground limestone

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.

Genetic disorders can result when sister chromatids fail to seperate properly. during what phase is this problem most likely to occur?

Adoença vitiligo afeta qual doença do corpo?