In the photo above, a sand dune is being moved by a sudden breeze. the breeze is carrying away bits of sand to deposit them in
a different area. which of the following processes is happening in this photo?
a. physical weathering
b. erosion by wind
c. erosion by gravity
d. chemical weathering

Can someone list any possible solutions to air pollution ?

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

Rainbow trout is non- native to the united states. however this species is breeding with the native gula yltrout acientistrecently observed that the hola trout were becoming exitinct what is the cause of their extinction