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Is the study experimental or observational A sample of fish is taken from a lake to measure the effect of pollution from a nearby factory on the fish?
Wiki User
∙ 13y ago
observational
Wiki User
∙ 13y ago
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A study in which researchers measure or observe characteristics of the sample members?
observational study
What are the 6 annexes in marine pollution?
measure to avoid marine pollutions by oil annex 1 measure to avoid marine pollution by noxious liquid substances annex 2 measure to avoid marine pollution by harmful substances annex 3 measure to prevent marine pollution by seawage from ship annex 4 measure to prevent marine pollution by garbage annex 5 measure to prevent marine pollution by air pollution annex 6
What is the difference between the independent variable and the experimental variable?
the independent variable is changed, and the experimental value measure. So you control the independent variable and change it to measure the results
How do you measure land pollution?
To measure land polution you'll have to get a microscope :)
How would you measure noise pollution?
decibels
Which of the following is an important advantage of experiments over observational studies?
The main possible advantage is that in an experiment, it is possible to control some of the variables so that it is easier to measure the effect of key variables. In observational studies, no such control is possible.
What are the difference between an experiment and an observation?
In an experiment investigators apply treatments to experimental units (people, animals, plots of land, etc.) and then proceed to observe the effect of the treatments on the experimental units. n an observational study investigators observe subjects and measure variables of interest without assigning treatments to the subjects. The treatment that each subject receives is determined beyond the control of the investigator. For example, suppose we want to study the effect of smoking on lung capacity in women. Summary: 1.The main difference between observational study and experiments is in the way the observation is done. 2.In an experiment, the researcher will undertake some experiment and not just make observations. In observational study, the researcher simply makes an observation and arrives at a conclusion. 3.In observational study, no experiment is conducted. In this type of study the researcher relies more on data collected. 4.In an experiment, the researcher observes things through various studies. 5.There is human intervention in experiments whereas there is no human intervention in observational study. 6.Hawthorne studies are a good example for experiments. 7.The study to determine the relation between smoking and lung cancer is a typical example for observational study.
What strategies can be put in place to minimize land pollution?
Measure of air pollution?
What is experimental evidence?
Experimental evidence is data obtained through conducting an experiment. For example, if I measure the boiling point of a substance at 500 degrees Fahrenheit by boiling the substance, 500 degrees is my experimental evidence.
Does the experimental group test the dependent variable?
Yes, the experimental group is typically the group that receives the treatment or intervention being tested, and this treatment is what may cause changes in the dependent variable.
How do you measure temperature of boiler in sugar factory?
measurement of temperature of boiler in suger factory
Why do people use high tech to measure pollution?
because it helps people keep pollution from reaching dangerous levels
