Suppose that 1500 volcanoes on the earth surface are active. if 80% of this volcanoes are located at convergent tectonic plate boundaries how many active volcanoes are located at convergent boundaries?

What is the difference between external & internal migration

How do ocean currents affect temperature? check all that apply. they carry cold water from the poles to the equator and cool air over land. they flow north and then south below the equator. they flow south and then north above the equator. they move warm water from the equator to the poles and heat air over land. they move east to west and create prevailing winds. they move west to east and create seasonal winds.

Plants in the tundra biomes have had to adapt to live long periods of time without a. cool temperatures b. sunlight c. oxygen d. water