Answer:
I participate in environmental projects in my area.
Explanation:
I participate in implementing many environmental projects such as building and maintaining home garden or conducting a war on waste campaign in my area in order to clean and beautify the environment. due to building and maintaining home gardens, the environment becomes very beautiful while on the other hand, participate in waste campaign makes the environment clean from all waste material.
Answer:
Periodically test food for illness causing microorganisms.
Explanation:
this question is incomplete but I have added The Answer options to your question
a) He does not have a hypothesis.
b) He only has one group. He has not established a comparison
c) He has not measured an outcome.
d) The groups were not equal to begin with.
Answer:
b) He only has one group. He has not established a comparison
Explanation:
A randomized controlled experiment can be defined as an experiment that has two groups which it randomly assigns participants to.
These two groups are:
1.) the experimental group and
2.) The controlled group on whom the study is being performed.
Now Alberti does not have any of these groups we have listed. He performed the testing on the same people before they consumed alcohol and after they consumed alcohol. Therefore this study was not comparative in nature.
Number 3 is the correct answer
