Answer:
Beards itself are not intelligent, however, they do make people appeaar smarter and more knowledgeable.
Explanation:
While I don't have anything to prove this except for the fact that on various surveys many more people find them more intelligent looking than others.
The threat from acid deposition has been steadily increasing in the 21st century because of the increase in the number of industries during this period. The acid particles get trapped in the atmosphere and falls as raid on earth. These acid particles are increasing with the booming of the industrial sector.
The sun (solar energy)
The Earth (geothermal) this can also be known as internal
