3. why do earthquakes occur at plate boundaries?

usually, the rock is moving along large cracks in earth's crust called faults. most earthquakes happen at or near the boundaries between earth's tectonic plates because that's where there is usually a large concentration of faults.movement along those faults can cause earthquakes too.

explanation:

answer: due to the convection current in mantle.

explanation: when the convection current occurs in mantle then, it impacts to the plate boundaries and mostly it's edges.

post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and colour.

explanation:

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.