The answer is <u>C; biosphere and lithosphere</u>.
Hope this helps :)
A steep pressure gradient ( where isobars<span> are </span>close together<span>) </span>indicate<span> higher winds, a less steep pressure gradient (where </span>isobars<span> are farther apart) </span>indicate<span> slower air movement. ... Be able to interpret a </span>weather map<span> that shows the distribution of air pressure and wind flags.</span>
C . Telegraph ..............
Groundwater<span> also can </span>cause erosion<span> under the surface. As water flows through the soil, acid is formed. ... Minerals that are carried in </span>groundwater<span> can also be </span>deposited<span> in other places. This cycle of </span>erosion and deposition<span> can </span>cause <span>underground caves to form.</span>
