Answer:
A scale and a tape measure.
Explanation:
Use the tape measure to get the volume and the scale to get the mass.
Widened margins does not occur at the continental margin
The Use of nitrogen fertilizers near the lake is your answer.
Explanation:
The valence electrons determine the group the elements belong in the periodic table. For example, the element sodium, Na, has a valence electron of one and so it belongs to Group 1 in the periodic table. Another example is Aluminium, Al, which has a valence electron of three and therefore it belongs to Group 3 in the periodic table.
Answer: mitosis
Explanation:
Mitosis is the process when a parent cell is divided, and two daughter cells are found after the process. This question says that when the parent cell is split, two daughter cells are the result. This is mitosis, so the answer is D.