That only the best traits would go through. The weaker trait in the animals would eventually die off.
Anyway, water acts as a base and as a acid depending on what it is reacting with. Molecules that do this are called amphiprotic.
Answer:
because it weighs more than water
You can start this by setting up two vectors starting at the origin.
Vector 1 has coordinates of (-57,0) since in the east direction.
Vector 2 has coordinates of (0,13) because going north.
Starting from the origin, plot the two points, which will give you two sides of a triangle.
You can use pythagorean theorem to solve for the magnitude of the velocity. And you can find the angle by arctan(y/x)
Pythagorean would produce 58.46m/s
