Yardangs are tall, broad peaks that appear in deserts. Weathering and erosion work together to form yardangs. They are produced
by the wind that carries dust or sand. The gritty wind wears away the soft rock of a cliff, leaving a shape like the one seen here. What are the agents of weathering and erosion that form yardangs?
a) wind picking up sand from the desert
b) wind and sand wearing away the rock face
c) rock particles falling to the base of the yardang
d) loose particles from the cliff blowing to new parts of the desert
Yardangs are formed by wind erosion, typically of an originally flat surface formed from areas of harder and softer material. The soft material is eroded and removed by the wind, and the harder material remains.
39%. Adenine would have the same percentage as Thymine, meaning it would he 32% A and T and then subtract that from 100 giving you 72 divide that by 2 and you get part Guanine and part Cytosine.
The average energy of motion of particles in a substance is its kinetic energy. Therefore, temperature is the measure of the average kinetic energy of the particles of a substance. The thermal energy of the substance is the total energy of the substance.
