Which of these phenomena cause uneven heating of the earth?
land and water have different heat capacities.
land and water have the same rate of heat absorption.
the angle of incoming sunlight varies at different places.
air travels from areas of low pressure to areas of high pressure.
winds blow in the same direction across earth’s surface

The angle of incoming sunlight varies at different places.

The earth being spherical in shape and different locations of earth receives different amount of energy from sun. Near the equator the earth receives maximum sunlight energy. The latitudes farther from the equator the rays from the sun strikes the earth at low angle, causing the same amount of energy to be distributed over a large area. Therefore, these regions exhibit cooler temperature as they receive low sunlight and regions near the equator are comparitively warmer.

Hence, the phenomena of uneven heating of the earth is because of angle of incoming sunlight, which varies at different places.  

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs