Question

Experiment1
A student tested to see if ultraviolet light made plants grow
more slowly. She followed a logical method and used
control and experimental groups. She repeated her
experiment several times and each time found that plants
grow slightly slower with ultraviolet light
Experiment 2
A student tested to see if a new fertilizer made roses
bloom earlier. She used a logical method and control and
experimental groups. She periomed one experiment and
found that the fertilizer had no effect
Which experiment most likely has greater reliability, and why?
O A Number 2 because it has control and experimental groups
O B Number 1. because the experiment proved the hapothesis
O
C Number 1 because the experiment was repeated with the same
ooo
O
Number 2 because she performed only one experiment

Answer 1

Answer:

C number 1 because the experiment was repeated

Answer 2

The experiment that ultraviolet light made plants grow more slowly is the experiment most likely has greater reliability in which the experiment repeated several times and each time found that plants grow slightly slower with ultraviolet rays because the experiment was repeated with the same. Thus,option C is correct.

What are the effects of ultraviolet light on plant growth?

The main effect of ultraviolet light on plant growth is during photosynthetic active radiation under high level, UV -B light increases the net plant photosynthesis in several plant species.

Higher production of flavonoids can be induced under both UV-B and high PAR in young and old plant leaves.

When UV light is obtained by plants resins production increases and plant become richer in smelling and better in tasting.

Due to increase in resin production the plant is protected  from pests and diseases.

Therefore,the experiment that ultraviolet light made plants grow more slowly is the experiment most likely has greater reliability in which the experiment repeated several times and each time found that plants grow slightly slower with ultraviolet rays because the experiment was repeated with the same. Thus,option C is correct.

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