Chemistry, 05.05.2021 21:00, clarkster112679
You want to test the effect of soil acidity on plant growth. Which of the following is an example of a controlled experiment to test this?
O A. The plant type soil acidity amount of light and amount of water are all varied and studied in a laboratory.
O B. The soil acidity of plants in a garden that get light and water from their surroundings is increased after the plants grow to a height of 100 cm.
O C. The plant type amount of light and amount of water are kept constant well so acidity is varied for plants in a greenhouse.
O D. Soil acidity in height of plants growing in 10m^2 yard are measure twice in July and twice in August.
Answers: 1
Chemistry, 22.06.2019 08:30, lpssprinklezlps
What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots
Answers: 3
You want to test the effect of soil acidity on plant growth. Which of the following is an example of...
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