Answer:
Seafloor spreading at the mid-ocean ridge provides the mechanism for tectonic plate movement. The Earth's mantle moves through convection, showing that tectonic plates are able to glide. The location of the plates was determined by locating their boundaries, using data on the Earth's magnetic field.
there would be no ecosystem
Answer:
68 1/2 foot length
Or 22 5/6 yards.
Explanation:
The yard length of the part of the goal post
The base (10 foot)
The crossbar (18 1/2 )
And two arms (20 foot each)
Let's sum up the total yards
=(10 + 18 1/2 + 20 +20) foot
= 68 1/2 foot length
Or 22 5/6 yards.
