To test the effectiveness of a new supplement, one group is given the supplement, and the other group is not given anything. which is the most complete list of the parts of an experiment presented in this scenario?

a. independent variable, dependent variable
b. control group, experimental group, dependent variable
c. independent variable, control group, experimental group
d. control group, experimental group

the answer is C.independent variable, control group, experimental group i just took the test

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.