Can someone with this earth science?

2. The troposphere is the first layer above the surface and contains half of the Earth's atmosphere.

3. nitrogen

4. hydrogen and oxygen

5. 2.09%

6. 20.95%

7. 2.33%

8. titanium at 0.61%

that's all i can type for now

the wires in the toaster turning red and the toast crisping and turning brown

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.