The periodic table was created by grouping elements according to their properties. An unknown substance was shown to contain a metal element with an atomic mass around 28. With which of the following elements is it most likely grouped? A. nitrogen

B. carbon

C. boron

D. oxygen

Which statements about tornadoes are true? check all that apply. (a) about 12,000 tornadoes hit the united states every year. (b) a tornado looks like a funnel. (c) tornadoes are deadly atmospheric storms that cause millions in damages each year. (d) tornadoes can reach wind speeds of more than 300 miles per hour. (e) kansas is the state with the most tornadoes. (f) you will always notice a funnel before a tornado strikes.

An alien spaceship is 500 m above the ground and moving at a constant velocity of 150 m/s upwards. how high above the ground is the ship after 5 seconds?

Explain what will happen if decomposers were apsent from a forest ecoysystem.