science
how are canyons formed
by erosion as moving water digs into the earth
over flow water and sediments from a flooded river most likely go to the
floodplain
the land drained by a river is called its
drainage basin
the color of sand on a beach depends on
the source of the sand and rock
what kind of weathering happens when plant roots grow into the cracks of the rock
mechanical weathering
what process forms river deltas
deposition
sandbar
in the ocean where is wave energy the strongest
at the waters surface
why do farmers plant cover crops
to reduce the amount of soil erosion
mineral deposits are formed when
disolved minerals settle out of the water
what is the main process that shapes earths surface
water running downhill
label the 4 parts of a wave
trough crest ampitude wavelength
how has the amount of salt in the ocean change over years
it has increased
what can cause tsnamis to form
underwater earthquakes
when will the ampitude of the ocean waves be the smallest
on a calm day
what happens to a waves ampititude when strong winds blow over the oceans surface
the ampitude greatly increases
what is one important difference between weathering and erosion
erosion involves movement of material from 1 place to another
what causes sand dunes to form
wind
glacier movement formed which body of water
the great lakes
what are 2 forces that can change costal landforms and give an example of each
waves carry sediments and can wear down landforms . wind can blowloose sand into piles called dunes