subject
Chemistry, 05.05.2020 13:24 bandnerd1

Bobby and Sam decided to plant a vegetable garden. Sam had heard that earthworms help produce fertile soil. He suggested that they buy worms from the bait shop and add them to the soil before planting seeds. "This is like a science experiment" Bobby replied. If this were a science experiment, what would be the BEST testable question to guide the boys' research? A) What do earthworms eat? B) How do earthworms help plants grow? C) How does the number of earthworms in the soil affect plant growth? D) Does the presence of earthworms really change the soil they live in?

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 21.06.2019 16:00
The overall chemical reaction for photosynthesis isshown below: 6co2 + 6h20 → c6h12o6 + 602what mass of glucose (c6h1206) can form from71.89 g co2? (molar mass of c6h1206 = 180.18g/mol; molar mass of co2 = 44.01 g/mol)71.89 g co2=g c6h1206
Answers: 1
question
Chemistry, 22.06.2019 08:00
Why are pipes bursting in the in extremely cold weather?
Answers: 2
question
Chemistry, 22.06.2019 10:30
Geothermal energy for industrial use is available almost anywhere. a.true b.false
Answers: 2
question
Chemistry, 22.06.2019 19:00
How many liters of ethylene glycol antifreeze (c2h6o2), with a density of 1.100 g/l, would you add to your car radiator containing 15.0 kg of water if you needed to protect your engine to - 21.5°c? for water, kf = 1.86°c m -1.
Answers: 1
You know the right answer?
Bobby and Sam decided to plant a vegetable garden. Sam had heard that earthworms help produce fertil...
Questions
question
Mathematics, 16.04.2020 17:04
question
Biology, 16.04.2020 17:05