Answer: Plant A
Explanation: The control group is participants who do not receive the experimental treatment.
Answer:
light waves can be converted to electricity through <em>a solar cell</em>
Explanation:
is iron and aluminium is there
Answer: a and d
Explanation: A.) the power lines themselves
B.) the wooden pole that supports the lines
C.) the rubber soles on the worker’s boots
D.) the metal tools the worker uses
E.) the wooden ladder leaning against the lines
Answer:
Visible Light
wavelength = 4000 - 7000 Angstroms = 400 - 700 milli-microns
1 A unit = 10^-10 m
1 mμ = 10^-9 m
