Earth and Planetary Sciences
Amount
14%
Antimony
28%
Average
14%
Copper
57%
Depletion
14%
Efficiency
14%
Electronic Waste
14%
Energy Consumption
14%
Energy Requirement
14%
Energy Saving
14%
Estimate
14%
Extraction
28%
Increasing
14%
Industrial Process
14%
Lead
28%
Material Flow Analysis
28%
Materials Recovery
28%
Mobile Phone
100%
Nickel
28%
Noble Metal
14%
Palladium
28%
Primary Production
14%
Product
14%
Purpose
14%
Silver
28%
Social Problem
14%
Substitute
14%
Time
14%
Tin
28%
Engineering
Depletion
14%
Efficiency
14%
Energy Conservation
14%
Extraction
28%
Great Potential
14%
Large Amount
14%
Material Recovery
28%
Metal Refining
14%
Mobile Phone
100%
Primary Production
14%
Process Flow
14%
Products
14%
Recovery
14%
Recovery Process
28%
Recovery Rate
14%
Recycling
14%
Recycling Process
28%
Reducing Energy Consumption
14%
Material Science
Electronics
14%
Material
42%