How does weathering alter the surface of land? is it d?
a.
the landscape is changed as large rocks form deltas where an ocean meets a river.
b.
the landscape is altered by the creation of new hills or shapes such as a delta at the end of a river's course to the sea.
c.
existing rocks are broken into smaller fragments, freeing the pieces to be moved away.
d.
the shape of a beach or a hill can be changed as smaller particles are moved away.

An ideal otto cycle has a compression ratio of 8. at the beginning of the compression process, air is at 95 kpa and 27°c, and 750 kj/kg of heat is transferred to air during the constant-volume heat-addition process. assuming constant specific heats at room temperature, determine (a) the pressure and temperature at the end of the heat-addition process, (b) the net work output, (c) the thermal efficiency, and (d) the mean effective pressure for the cycle. (4390 kpa, 1730 k; 423 kj/kg; 56.4%; 534 kpa)