Desmos Unit 6.2, Lesson 9: Practice Problems

3.

A park fountain sprayed 20 gallons of water in an hour, then was turned off for awhile.

When it was turned back on, it sprayed 30 gallons in of an hour.

Explain how you know that the fountain sprayed water at the same rate both times it was on.

Why do leaves change color in the fall? green pigments break down and no longer mask the color of chlorophyll. chlorophyll breaks down and no longer masks the colors of other pigments. red- and yellow-colored pigments grow and mask green-colored chlorophyll. green-colored chlorophyll breaks down and turns red and yellow.

How does the diagram explain ocean currents? earth tilt 23.5 degreesquestion 1 options: earth's tilt causes uneven heating of earth which causes currents.earth's tilt causes the ocean to move because of gravity.earth's tilt and its rotation cause currents.earth's tilt causes uneven distribution of salt which causes currents.

Why does the earth spin slowly, not faster? is it possible to prove it scientifically? can you prove it with math?