Which Mining Technique Is Commonly Used in Developing Countries When

question 33

Multiple Choice

Which mining technique is commonly used in developing countries when sediments contain heavy metals like gold?

• A)placer mining
• B)subsurface mining
• C)strip mining
• D)open-pit mining
• E)mountaintop removal

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Definitions:

Midlife Review

Introspective examination that often occurs in middle age, leading to reappraisal and revision of values and priorities.

Developmental Deadlines

Refer to the specific age by which most individuals have achieved certain developmental milestones, beyond which there may be concerns about developmental delays.

Social Clock

Set of cultural norms or expectations for the times of life when certain important events, such as marriage, parenthood, entry into work, and retirement, should occur.

Midlife Crisis

A period of emotional turmoil in middle age characterized by a desire for change or reassessment of one's life.