Chemistry, 27.05.2020 11:58 lilblackbird4
Fred is conducting a controlled experiment to test whether using a grow light at night will help a tomato plant grow faster. Below are the steps to Fred's experiment: Plant tomato plants in two separate, but identical, flowerpots. Place the flowerpots in the same area outside during the day. At night, bring both flower pots inside and place one in the dark and one under a grow light. Give the plants the same amount of food and water each week. Measure the growth of the plants. Draw conclusions based on the data collected. Which of the following variables must Fred hold constant in this experiment? A. the type of tomato plants used B. the amount of time both plants spend in the dark C. the length of time this experiment is carried out D. the amount of time both plants spend in the light
Answers: 1
Chemistry, 21.06.2019 15:10
Atank contains 240 liters of fluid in which 10 grams of salt is dissolved. brine containing 1 gram of salt per liter is then pumped into the tank at a rate of 6 l/min; the well-mixed solution is pumped out at the same rate. find the number a(t) of grams of salt in the tank at time t.
Answers: 3
Chemistry, 22.06.2019 10:30
Geothermal energy for industrial use is available almost anywhere. a.true b.false
Answers: 2
Chemistry, 22.06.2019 12:30
Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together
Answers: 1
Chemistry, 22.06.2019 19:10
Δu of , in kj/kg, as it isto k, (a)as a of , (b) at , (c) at .
Answers: 2
Fred is conducting a controlled experiment to test whether using a grow light at night will help a t...
Mathematics, 22.08.2019 05:30
English, 22.08.2019 05:30
Social Studies, 22.08.2019 05:30
Mathematics, 22.08.2019 05:30
Social Studies, 22.08.2019 05:30
English, 22.08.2019 05:30
Mathematics, 22.08.2019 05:30
Mathematics, 22.08.2019 05:30
Physics, 22.08.2019 05:30
Chemistry, 22.08.2019 05:30
Mathematics, 22.08.2019 05:30