Answer: False
Explanation:
In experiments on human subjects, scientists cannot carefully control the conditions so that cause-and-effect relationships can be clearly proven.
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Answer:False
Explanation: There are various types of pollution and not all of these are restricted to cities.
For example pollution may result from improper disposal of waste and this is very likely to also occur in rural areas where you find that people may just dump waste on the rivers and lakes which in return affect activities such as fishing and swimming. Even the industrial water which may be dumped from the cities will still be carried away by rivers to reach other areas away from the cities. Nutrient pollution also comes from rural areas where there is a lot of farming happening and a high use of fertilizers , pesticides and herbicides which also have an impact as they get washed into the rivers and impact the quality of water such that the water becomes undrinkable.
So pollution is everywhere and there are different kinds of it.
5 years you have to redo it every 5 years I think
Answer: A
Explanation:
To become President of the United States, a presidential candidate must be a natural born citizen of the USA, have been a resident of the US for fourteen years, and a minimun of 35 years old.
The Constitution does not make a difference between being a woman or representating minorities.
