Answer:
Clouds form when air reaches its dew point. This can happen in two ways:
(1) Air temperature stays the same but humidity increases. This is common in locations that are warm and humid.
(2) Humidity remains the same, but temperature decreases
Dr luceros team used looters trenches rather than dig new ones because they wanted to protect the site from further damage. This is because to prevent further destructions from their activity.
The answer would be "Rhyolite Porphyry"
It is a rock that contains
a) Orthoclase + Orthoclase phenocryst = 35 % + 15 % = 50 % = plagioclase feldspar
b) Quartz = 30%
c) Alkali fled spar = 20%