Who wants a bf im 16 :P we can talk on padlet

Which of the following true? a_volcanoes and earthquakes often near the plate boundaries. b_volcanoes occur whereve there are tall mountains. c_earthquakes cause volcanoes in the same location to erupt violently d_volcanoes and earthquakes occur only where plates are colliding with each other

Determine the reaction and balance the following equations urgent due in the morning

What four properties do all waves have in common