Biology, 12.12.2020 15:50 bigboss3026
A high school biology class wanted to see how acid rain affects the growth of plants. They
purchased 40 of the same exact flowering plant and placed them in the same area, where
they will receive plenty of sunlight. To create the "acid rainwater" the students mixed
vinegar and water until the pH reached 3.0. They watered them daily with acid rainwater
and recorded the observed results daily for 1 week. At the end of the experiment, they
noticed that on day 4, each plant lost about 4 to 5 flowers. The students concluded that
acid rain is harmful to plants. What is wrong with this experiment?
This experiment lacks an experimental group.
This experiment lacks a theory to explain their results.
This experiment lacks variables.
This experiment lacks a control group.
Answers: 3
Biology, 21.06.2019 16:30
As , plants meet their needs for making food from air, soil, water, and the sun's energy in a process called there are plants called grow high in trees without here are words to put in the blanks. 1.) producers 2.) consumers 3.) chloroplasts 4.) epiphytes
Answers: 1
Biology, 22.06.2019 03:00
What best describes the structure of the declaration of independence?
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Biology, 22.06.2019 06:00
Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this
Answers: 3
Biology, 22.06.2019 07:20
If your blood becomes too concentrated with iona, what will happen to the red blood cells
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A high school biology class wanted to see how acid rain affects the growth of plants. They
purchase...
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