Help me with my work it’s science don’t say search it up on google or nun of that just help me with my homework

Tornadoes begin by cold air and hot air mixing together for #1

1. Was already answered by the other person.

2. Supercell tornadoes form once the updraft is rotating and being fed by warm, moist air flowing in at ground level, a tornado can form.

3. Wind shear is a change in wind speed or direction with height in the atmosphere.

4.Tornadoes can spin 20 miles per hour.

5. The powerful and strong winds cause the most damage in a tornado.

6. Tornadoes usually form in the central United States usually located by the Great Plains.

7. The humid conditions help form tornadoes.

8. The Fujita scale is meant to measure how powerful and strong a tornado is from 0 to 6.

9. The safest place to be during a tornado is somewhere where their aren’t any windows.

10. Huh?

11. Most people die or get injured during a tornado by a head injury.

Muscles in the body us with a lot of things for example, if i wanted to lift a heavy box and had no muscle i would just collapse where i was because of the fact muscles hold us together. overall they are 650 muscle in the human body, all of them have different purposes and ways to keep us together. there are three types of muscle in the body skeletal, smooth, and cardiac muscle. skeletal muscle are attached to the bone and with movement. smooth muscle, this is found in the wall of our organs, such as our stomach, this muscle with movement   as well, without this muscle, we would only be allowed to eat small amounts. the cardiac muscle is the heart muscle and probably the most important one. these are only found in the walls of the heart and the heart pump blood to the other parts of your body. we have two different types of muscle fibers, slow twitch and fast twitch. slow twitch muscles enable long-endurance feats such as distance running. fast twitch fatigue faster but are used in powerful bursts of movements like sprinting. there are three different types of muscle contractions concentric, eccentric, isometric. concentric contraction causes muscles to shorten, thereby generating force.   eccentric contractions cause muscles to elongate in response to a greater opposing force. isometric contractions generate force without changing the length of the muscle.: //athleticquickness.com/muscle-contraction-types-part-1/

Hey would employ people