List and describe the four types of bonds exhibited in minerals. Give an example of a mineral that exhibits each type of bond
What will be an ideal response?
Ionic bonds occur when oppositely charged ions are attracted to one another. Example: halite, calcite, quartz
Covalent bonds occur when atoms share electrons. Example: calcite, quartz, diamond, graphite
Metallic bonds occur when electrons roam freely around a number of atoms. Example: gold, copper
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What is the volcanic explosivity index (VEI), and how is it determined? What will be an ideal response?
Which of the following statements about soil on earth is not accurate?
A. It always has some organic material in it. B. It always has weathered rock fragments in it. C. It is often referred to only as "dirt." D. It commonly has air and water in it. E. All of these choices are correct.
Sustainability involves ________
A) maintaining the natural environment and human society in a healthy and functional state B) maintaining or improving the current quality of human life C) opposing change from current policies D) focusing on fulfilling short-term needs E) maintaining resource use at current or higher levels
Creating a new wetland where one has been destroyed is referred to as
A. wetland rehabilitation B. bioremediation C. wetland reclamation D. wetland mitigation E. wetland restoration