Which statement best describes a benefit of conducting a comparative investigation over collecting data from the Internet? 1 A comparative investigation can be repeated in a short time while collecting the continuous data from the Internet takes longer.

2Conducting a comparative investigation is always less expensive than an investigation in which data is obtained from the Internet.

3 Conducting a comparative investigation is always less time consuming than obtaining data from the Internet.

4 A comparative investigation can provide a wider range of data than can be obtained from the Internet.

The correct option is 4

Explanation:

Comparative investigation involves the collection of data from different "subjects" (including organisms, object or characteristics) or obtaining data under different conditions (such as seasons, years or locations) for the purpose of comparison. This type of investigation is both time and capital intensive; meaning it requires a lot of time and money. It however provides a larger and wider range of data that might not be available through other "independent investigations" because a large amount of subjects is usually studied for proper and accurate comparisons.

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex