« previous next »

Author Question: About how many minerals make up the majority of rocks on Earth's surface? A) 10 B) 12 C) 40 ... (Read 81 times)

Tazate

  • Hero Member
  • *****
  • Posts: 532
on: Jul 16, 2018
About how many minerals make up the majority of rocks on Earth's surface?
 
  A) 10
  B) 12
  C) 40
  D) 100

Question 2

From quartz's hard physical property, what can be inferred of its bonding structure?
 
  A) an interlocking three-dimensional framework of evenly spaced groups
  B) an interlocking three-dimensional framework of unevenly spaced groups
  C) two-dimensional sheets of hexagonally bonded groups, loosely bonded between sheets
  D) rhombically shaped ionic bonds between groups with even cleavage planes


milbourne11

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: C

Answer to Question 2

Answer: A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

About 60% of newborn infants in the United States are jaundiced; that is, they look yellow. Kernicterus is a form of brain damage caused by excessive jaundice. When babies begin to be affected by excessive jaundice and begin to have brain damage, they become excessively lethargic.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.

Did you know?

People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Tides on Earth Tides on Earth
The Spectra of Stars with Different Surface Temperatures. The Spectra of Stars with Different Surface Temperatures.
The geomagnetic polarity time scale shows how Earth’s magnetic pole has changed through geologic tim The geomagnetic polarity time scale shows how Earth’s magnetic pole has changed through geologic tim
Surface Rupture Surface Rupture
T cells bound to fluorescence-tagged antibodies to two cell-surface proteins are T cells bound to fluorescence-tagged antibodies to two cell-surface proteins are
Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ... Earth’s tilt and yearly rotation around the sun cause seasonal effects. The 23° tilt of Earth’s ...
Video: Simple Diffusion - gases and nonpolar compounds transport

For a complete list of videos, visit our video library