Please help my teacher asked me a riddle and said if I get it right I don't have to do homework for the week! THE RIDDLE: I speak without a mouth and hear without ears. I have no body, but I come alive with the wind.
What am I?

For each of the processes in model 1, decide as a group if the molecules in the substances have more order (are more organized) before or after the reaction. circle the side of the reaction with more order.

1) earth's crust is made up of relatively rigid plates that ride atop earth's hot, semiliquid mantle. (2) the plates are called tectonic because they're in constant motion. (3) they can move because earth's mantle is a very hot and semiliquid fluid called magma. (4) volcanoes are a result of magma rising up or erupting through a plate, particularly where plate boundaries are moving against each other. (5) also, when plates slide against each other, causing friction along adjacent plate boundaries, earthquakes frequently occur. (6) therefore, we often find volcanoes and earthquakes along plate boundaries. (7) plates may also collide. (8) when that happens, mountain ranges are formed. (9) for example, the collision of the plate carrying the indian subcontinent created the himalayan mountains when it collided with the asian plate. 2. which sentence in this passage introduces a new topic that might begin a new paragraph? a. sentence 5 b. sentence 4 c. sentence 7 d. sentence 6

Sorry two big valves your rpm will go down plus the smaller ones will give you more horsepower your rpm will go up the answer is b