Flu-like Illness. One of the earliest HIV symptoms in men is a severe 'flu-like' illness, known as the 'seroconversion illness.'. Seroconversion is the point in time where a person's blood is converted from being HIV negative to HIV positive, by the production of antibodies.
Erosion causes the surface of mountains to be younger than the rocks that form the mountains themselves. Glacial processes produce characteristic landforms, such as pyramidal peaks, knife-edge arÃªtes, and bowl-shaped cirques that can contain lakes.
A mountain is made of, quite simply, earth. Mountains form where land has been forced upwards by pressure from the tectonic plates, and so they are made of much the same thing â¦ that regular land is made of (such as rock and minerals).Earth and rocks.nswer (2) In addition to the last answer, a mountain has to be over 2,000 feet, otherwise it is just a hill. There are many contributing factors that go into the formation of mountains.