Phosphorus is an essential plant nutrient required to assure stable food supply of the global populace. There has been debate regarding the availability of mined phosphorus for future generations. Given that in 2019, the USGS reported that the economically extractable phosphate rock reserves worldwide were 63323359752 million tons, while world mining production in 2018 was 279822649 million tons per year. Calculate how long economically extractable phosphorus reserves would last (from 2019) if the 2018 demand remained constant (assume that there will be no technological development or to improve the economics of phosphorus extraction).

steering wheels are always situated on the left side of the car.

always drive on the right side of the road.

white lines separate lanes of traffic traveling the same direction.

hashed or broken lines means you may change lanes when it is safe.

solid white lines mean stay in your lane.

yellow lines separate traffic moving in opposing directions.

hashed or broken yellow lines mean you can carefully pass, paying attention to oncoming traffic.

never cross a solid yellow line (or double yellow line).

when turning left at an intersection, pass in front of any cars that are turning left from the opposing direction (do not try to pass behind them).

use the left lane to pass other cars traveling your direction.

do not pass in the right lane unless absolutely necessary.

if you are driving in the far left hand lane and someone would like to pass you, move over to the right lane when it is safe to do so and allow them to pass.

you must always yield to pedestrians.

come to a complete stop whenever you see pedestrians trying to cross the street.

never pass a school bus if it has flashing red lights. wait until the lights have stopped.

be aware of bicyclists. often they share the road with cars and are supposed to also follow general traffic laws.

be particularly careful about driving in cities with bike lanes -- always check before turning that a bike is not coming.

it is mandatory to pull over or stop at an intersection to allow an emergency vehicle to pass you if you see one traveling with lights flashing and/or a siren running.

do not overuse your car horn. horns are used almost exclusively for emergency situations or for when you feel unsafe.

explanation:

answer; (c) communism and socialism;

answer; to open a new transaction, the user should type the code/0 along with a new transaction code, when done with that the user should press enter to open the transaction; good luck;

match the scenarios with terms related to financial aid.

pell grant

student loan

merit-based scholarship

richard is one of the leading college basketball players in the state of florida. he also maintains a good academic record. looking at his talent and potential, furman university offers to bear the expenses for his college education.

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anita wants to pursue a certificate program in sports nutrition. to pay for the course, she borrows money by filing the fafsa.

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nathan comes from a low-income household. he wants to pursue an undergraduate degree in marketing. he receives financial aid covering 50 percent of his college expenses. nathan does not have to pay back this amount.

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