To determine the effect of color of light on plant growth, 4 groups of bean plants were grown under the light conditions below.
group 1—under red light group 2—under green light
group 3—under violet light group 4—in normal, white light
which of the variables below should be held constant?
question 3 options:
a. how much each plant grows
b. the amount of light each group of plants receives
c. the color of light each group of plants receives
d. all of the above
Answers: 1
Chemistry, 21.06.2019 19:10
Nuclear fusion is the source of energy for stars. besides hydrogen, which other element is most likely also common in stars?
Answers: 1
Chemistry, 22.06.2019 15:00
What is the most important factor in determining climates.
Answers: 1
Chemistry, 22.06.2019 17:10
)benzene and toluene form nearly ideal solutions. consider an equimolar solution of benzene and toluene. at 20 °c the vapour pressures of pure benzene and toluene are 9.9 kpa and 2.9 kpa, respectively. the solution is boiled by reducing the external pressure below the vapour pressure. calculate (i) the pressure when boiling begins, (ii) the composition of each component in the vapour, and (iii) the vapour pressure when only a few drops of liquid remain. assume that the rate of vaporization is low enough for the temperature to remain constant at 20 °c.
Answers: 1
To determine the effect of color of light on plant growth, 4 groups of bean plants were grown under...
Biology, 01.04.2020 19:51
Mathematics, 01.04.2020 19:51
Mathematics, 01.04.2020 19:51
Social Studies, 01.04.2020 19:51
Mathematics, 01.04.2020 19:51
History, 01.04.2020 19:51
History, 01.04.2020 19:52
English, 01.04.2020 19:52