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?
Answers: 2
Other questions on the subject: Chemistry
Chemistry, 22.06.2019 16:50, briansalazar17
Answer asap need by wednesday morning calculate the ph of 0.16m ch3cooh which has ka = 1.74 x 10-5 mol dm-3 best answer will be brainliest
Answers: 3
Chemistry, 22.06.2019 17:20, banna01man
Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.
Answers: 2
Chemistry, 23.06.2019 08:50, leah5981
Reacting masses1 calcium carbonate breaks down on heating to produce calcium oxide and carbondioxide gas. caco3 + cao + co2a student heats 15 g of calcium carbonate strongly in a crucible. relative atomic masses (a): ca = 40, c = 12, o = 16.calculate the mass of calcium oxide produced by this reaction.(5 marks)
Answers: 3
You know the right answer?
Bobby and Sam decided to plant a vegetable garden. Sam had heard that earthworms help produce fertil...
Questions in other subjects:
Chemistry, 16.12.2020 20:10
Mathematics, 16.12.2020 20:10
History, 16.12.2020 20:10
Mathematics, 16.12.2020 20:10
Arts, 16.12.2020 20:10
Mathematics, 16.12.2020 20:10
Biology, 16.12.2020 20:10
