Deficit spending is the spending of money raised by borrowing from the public. It is used by the government to quicken the economy during times of crisis. Unless the "borrowing" is refunded, deficit spending can increase the national debt.
Plant hormones are chemical plants use for communication, coordination, and development between their many cells.
Hope this helps,
Davinia.
10) the cv is wrong; it should be the number of coats of nail polish she applies
11) the iv is wrong; it should be the amount of paperclips on each plane (so basically the weight of each plane)
4 cells and 2 chromosomes in each cell because you need one from your mom and one from your dad
Science keeps "improving", so the scientific theories and ideas from the past are either expanded on or proved to be false. The concept of planets has definitely seen changes, with Pluto peven being considered not a planet. In the 20 century we believed there were 9 planets but now there is considered to be 8. Science exists as it is but as humans we are constantly discovering more of it because of improvement in the times and technology. Science that proves to be accurate will never be discredited though it will be improved upon .