1) Which statement correctly describes rock-forming minerals and economic minera
ID: 284766 • Letter: 1
Question
1) Which statement correctly describes rock-forming minerals and economic minerals?
e) Rock-forming minerals consist of a few types of minerals that are abundant in Earth’s crust, whereas economic minerals are less abundant and are used extensively in the manufacture of products.
2) What surface features do Mars and Earth have in common?
a) Silicates are important economic resources and include gypsum, which is used for plaster. Nonsilicate minerals are only important as rock-building minerals. b) Only minerals that are not rock-building minerals can have economic value. c) Economic minerals consist mostly of silicate minerals, whereas rock-building minerals consist mostly of nonsilicates. d) Rock-forming minerals consist of a few types of minerals that are sparse in Earth’s crust, whereas economic minerals are very abundant and are used extensively in the manufacture of products.e) Rock-forming minerals consist of a few types of minerals that are abundant in Earth’s crust, whereas economic minerals are less abundant and are used extensively in the manufacture of products.
2) What surface features do Mars and Earth have in common?
a) sedimentary rock layers, playas, and mud cracks b) playas, lake beds, and graded bedding of sediment c) karst topography, playas, and lake beds d) playas, lake beds, and sedimentary rock layers e) graded bedding, lake beds, and mud cracksExplanation / Answer
1.e. Rock-forming minerals consist of a few types of minerals that are abundant in Earth’s crust, whereas economic minerals are less abundant and are used extensively in the manufacture of products.
Note: Rock-forming minerals are abundant in earth's crust . Examples:O2 , Si, Al, Fe, Ca , Na, K, Mg.
Economic minerals examples are
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.