The town with spanish name an famous for underground cavern which located on the west of Texas is : El Dorado
This area has a 78% level of humidity and The underground caverns are the main tourist attraction for the city
<u>Answer:</u>
<em>Anytime observations need to be clarified. When an unusual condition need to be shown for later reference.</em>
<u>Explanation:</u>
Instead of just recording the data the is sometimes important to be sketched out as the data observed is needed to be clarified and also sometimes there is an unusual condition that occurs and hence, it is important to sketch it so that it can be used for later reference.
<em>Therefore, when we are aware of the situation we need not sketch the data.</em>
Answer:
in regions where the temperature often drops below freezing at night
Explanation: