Which of the following statements is true?
a)during active transport, a material may be moved from an area of low concentration to an area of high concentration.
b) during passive transport, energy is used to move material against a concentration gradient.
c)during active transport, water is pumped across a membrane to equalize the concentration of salts on both sides.
d)during passive transport, osmosis allows salts to move from one side of the membrane to the other to equalize concentrations on both sides.

Can someone me write a paragraph on this topic i feel confused

50 me on july 4, 1776, thomas jefferson wrote the declaration of independence. the declaration of independence can be compared to a break up letter because jefferson explained why america wanted its independence from king george iii. read pages 516-520 in your textbook to discover why america wanted to be an independent country. you will write your own break up letter from the colonies to king george iii. your letter needs to be at least 5-7 sentences, include the issues/events leading up to this breaking point, and why the founding fathers felt independence would be better. remember! this is a “breakup letter”, so channel your inner taylor swift and make it creative!

This table shows the number of cities in north carolina from 1860 to 1910. which factor was responsible for the change in population from 1860 to 1910?