Answer: 15.4 g C/m^2/day
Explanation: NPP = GPP (22) - Ra (6.6)
50 billion suns
Even gluttons can't eat forever. When black holes at the hearts of galaxies swell to 50 billion times the mass of our sun, they may lose the discs of gas they use as cosmic feedlots. Most galaxies host a supermassive black hole at their centre.
<em><u>hope </u></em><em><u>it </u></em><em><u>helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em><em><u>!</u></em><em><u>!</u></em><em><u>! </u></em>
By adding taxes on the goods being carried by traders. Kingdoms would often thrive on taxes. Taxes would often come in form of goods or weapons. In most cases, food always used to pay for the services. This is because of the growing agricultural sector of many civilizations