Describe the theory of Plate Tectonics and the relationship between plate boundaries, earthquakes, volcanoes, mountains, mid-ocean ridges and faults. The theory of
plate tectonics
please explain each question want a long explanation ?

What are the student's observations and inferences before he starts his investigation?

The blue particles in this image are able to cross the cell membrane through simple diffusion. how will they be transported? outside the cell inside the cell o a. the substances will move directly across the membrane from outside the cell to inside the cell. b. the substances will move through channels in the membrane proteins from outside the cell to inside the cell. o c. the substances will move through channels in the membrane proteins from inside the cell to outside the cell. o d. the substances will move directly across the membrane from inside the cell to outside the cell.

18. which statement about cancer is true?