a control helps to increase the reliability of the results. it allows a scientist to compare it to other group(s) in an experiment. if a scientist notices a significant different btwn the control and the other groups, he can logically conclude that the independent variable has an impact on the dependent variable.
a variable is any factor, trait or condition that can exist in differing amounts or types. there are usually three tpes of variables in experiments: the independent, dependent and contolled. the independent variable variable is the one that is changed by the scientists to figure it's affect on something.
Answer:Determinants
Explanation:
Determinant covers causes, risk factors, mode of transmission (why and how)
returns freshwater to the earth
occurs after condensation
is roughly equal to the amount of evaporation
Explanation:
Precipitation returns fresh water to the earth, occurs after condensation and is roughly equal to the amount of evaporation.
The process of precipitation is a key component of the hydrologic cycle.
- In the hydrologic cycle, precipitation follows condensation of water vapor in the atmosphere.
- Precipitation often takes the form of rainfall and snow.
- It is any product of condensation of water in the atmosphere that falls back under the influence of gravity.
- In the hydrologic cycle, water leaves the surface of the earth in form of vapor as result of evaporation.
- Most times , the amount of evaporation is roughly equal to that of precipitation.
learn more:
Biogeochemical cycle brainly.com/question/3509510
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The correction option is B. The plants that belong to phyllum anthophyta are heterosporous, that is, they produce both male and female reproductive organs separately. Fruits grow when the male gamete fertilizes the female ovary. Their fruits are always fleshy with seeds inside them. A good example of a plant that belong to this phylum is pawpaw.
