Because they have an extended structure, elements that are ? tend to be in the ? state at room temperature

metal,middle of the periodic table,solid

Explanation:

Because they have an extended structure, elements that are metal tend to be in the middle of the periodic table state at room temperature as solid

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.

for step 7 table c on the lab "newtons law of action"   the average time it took the car to travel .25 meters   was 1.92 seconds.

the average time it took the car to travel 0.50 meters was 2.61 seconds

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