Which environmental change would cause the
greatest reduction in the biodiversity of a large
ecosystem?
(1) building a new home
(2) building a new store in a shopping mall
(3) widespread use of pesticides
(4) widespread recycling programs

Explain how scientists use geologic time to determine the age of landforms.

About __ of the mass of the cell is water

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?