Lithosphere - Study Mode
[#136] Which of the following are true with regard to fold mountains? I. They often act as climatic barriers II. They receive heavy rain or snow which give rise to rivers III. They are rich in minerals IV. They pose no problem, to communication as they contain many passes
Correct Answer
(C) I, II and III
Explanation
Solution: The following that are true with regard to fold mountains are they often act as climatic barriers, they receive heavy rain or snow which give rise to rivers and they are rich in minerals. Fold mountains are mountains that form mainly by the effects of folding on layers within the upper part of the Earth's crust.
[#137] Which of the following rocks is transformed into marble?
Correct Answer
(B) Limestone
Explanation
Solution: Limestone is transformed into marble. When limestone is subjected to the heat and pressure of metamorphism, marble, a metamorphic rock, is formed. Marble is composed of calcite or CaCO 3 . The calcite in the limestone will recrystallize when under the conditions of metamorphism.
[#138] Hanging Valley is very common in
Correct Answer
(C) Glaciated areas
Explanation
Solution: A hanging valley is a smaller side valley left 'hanging' above the main U-shaped valley formed by a tributary glacier. A hanging valley can be termed as an intermediately valley above another valley in an elevated zone. These are mostly found in glaciated areas.
[#139] The Metamorphism of Shale occurs in which of the following rocks?
Correct Answer
(D) Slate
Explanation
Solution: Metamorphism is a process in which a rock recrystallises due to intense heat and pressure. Shale is sedimentary rock which metamorphoses into slate.
[#140] Shale is metamorphosed into which of the following rocks?
Correct Answer
(D) Slate
Explanation
Solution: Shale is metamorphosed into slate. When shale goes through high temperature & pressure during regional metamorphism it becomes slate.