Amodel is useful if it’s what ? a. explains new observations. b. predicts new observations. c. matches new observations. d. all of the above.

I am pretty sure the answer is all of the above, D

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

bru what tyep of qus is dis