Which is true in a covalent bond? a. the bond forms between ions. b. the bond forms when electrons are shared. c. the bond is caused by van der waals forces. d. the bond holds atoms weakly.

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