How could the students improve the validity of the data in this experiment to better support their conclusion? es))
A)
Use only springs made from two different materials.
B)
Repeat the trials several times and take an average.
Test a greater variety of springs, increase sample size.
D)
Use exactly the same mass increments for each spring trial.

there are so many examples for that in different areas, like biology experiment carried out in our lab recently.

here's one link:

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.

a bird that nests only in a particular tree species.