Question 16

need help asap
- 20 points included
it’s a quiz !

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

Greenthe fossil record is the history of life recorded byhuman observationgod. climatologists. remains of the past.

Ascience research group is testing a new type of plant food. one trial is conducted in a controlled experiment. the data from the trial show that the plant that received the new food grew faster than the control plant. the group announces that the new plant food makes plants grow faster. what is the main weakness in this scientific claim?