Describe the method by which an electric potential develops in generators and thermal couples

What did hunter gathers do to alter the environment?

What was darwins theory of common decent

You want to cultivate some exotic plants at your farm. however, the climate is chillier than the temperature range favorable to the crop. which is the best method to use for the cultivation of this exotic crop? a. use a crop rotation method b. use a lot of fertilizer c. prepare the seed bed properly d. use a greenhouse e. use irrigation