Tasha is testing the effect of blue-colored light on the growth of tomato plants. which is the independent variable in this experiment?
question 19 options:

light color

light intensity

amount of light

temperature of light

Th correct option is A. light colour

Explanation:

An independent variable is described as a variable which doesn't get affected by another variable. In a scientific experiment, an independent variable is a controlled variable whose effects are checked on a dependent variable. Hence, Light colour is independent in the above experiment being performed by Tasha.

A dependent variable changes with a change in any other variable. Hence, light intensity, amount of light and temperature of light are the dependent variables.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

lipid

explanation: