Complete the passage about the nitrogen cycle. During nitrogen fixation, specialized bacteria living in Earth’s convert nitrogen taken from the into ammonia. Another set of bacteria convert the ammonia to compounds called nitrates that plants and animals can use.

Total solidification times of three casting geometries are to be compared: a sphere, a cylinder, in which the length-to-diameter ration - 1.0, and a cube. volume = 1000 cm^3 for all three shhapes, and the same casting alloy is used. a) determine the solidification times of each geometry b) based on the results of part (a), which geometric element would make the best riser? c) if the mold constant = 3.5 min/cm^2 in chvorinov's rule, compute the total solidification time for each casting.

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

Which word expression describes how much to calculate pressure