the measure of angle 1 is 70 degrees and the measure of angle 4 is 35 degrees. What is the measure of angle 3?

If a particular resource is not useful or needed then the price would be considerably low. once that resource is needed the price or value will raise depending on how useful or needed it is especially if the resource is low in quantity, the consumers would pay whatever they have to, to get that material.

Because the fertile crescent had fertile soil that they could grow plants in 

Water enters the atmosphere through photosynthesis.