Explanation:
A major problem with using 15 years of data to predict 100 years of data is that the 15 years could have been setting a trend, then level off.
For example, if the 15 years of data was a graph, and it was going up every year, then what if 20 years into the 100 years it stops going up? Then that means the data was invalid because there wasn't enough to base any trends off of.
You can prevent this from happening by extending the collection time of data and to reduce the amount of time that the data will be used to predict.
Hope this helps!
<span>1they live in In the north of the amazon rainforest : south America.
2they eat a</span><span>nything that they can collect in the forest ... EG. animals, berry's, nuts , seeds , flowers , plants and anything that they can really find / forage for
</span><span>3The Tucano are a multilingual people because men must marry outside their language group; that is
4no man may have a wife who speaks his language, for that kind of marriage relationship is not permitted and would be viewed as a kind of incest.
</span><span> 5 the Tucano practice linguistic exogamy
</span>6<span> They are usually described as being made up of many separate tribes</span><span>, although the appellation is somewhat problematic due to the complex social and linguistic structure of the region
7</span> <span>The Tukano recognize 137 varieties of manioc
8 the tukano </span>tribe<span>, which extends into Brazil and is the largest group
9</span>They<span>'re never the </span>work<span> of committees of living individuals
10</span>The Tukano<span> are 6,000 people living in the border with Colombia and Venezuela</span>
The soil layers are, in order: dirt, humus, rock. So the answer is D.