What are five problems with this experimental design that could have caused the inconsistent results? The rest that you can not read is: already started growing.

Results: Some of the roots seemed really big. Other roots seemed normal or small.

Conclusion: They couldn’t tell what the effect of the compost was because the results were inconsistent.

Hot air balloons float in the air because of the difference in density between cold and hot air. in this problem, you will estimate the minimum temperature the gas inside the balloon needs to be, for it to take off. to do this, use the following variables and make these assumptions: the combined weight of the pilot basket together with that of the balloon fabric and other equipment is w. the volume of the hot air inside the balloon when it is inflated is v. the absolute temperature of the hot air at the bottom of the balloon is th (where th> tc). the absolute temperature of the cold air outside the balloon is tc and its density is ďc. the balloon is open at the bottom, so that the pressure inside and outside the balloon is the same. as always, treat air as an ideal gas. use g for the magnitude of the acceleration due to gravity.

Can someone me with these questions plz.

Write a balanced equation showing the formation of copper (ii) nitrite from its elements