Share EARTH SCIENCE Q1 FINAL ROUND
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How does humans contribute to climate change?
carbon dioxide emissions
What will happen if the glaciers and ice caps will melt?
Sea level will rise; low-lying areas will submerge
Process of extracting ores in the Earth’s crust.
mining
Give one advantage and disadvantage of mining
advantage-provides resources; cons- environmental degradation/ destruction of habitat
Give 3 properties of minerals.
Color, Streak, Hardness, Transparency, Luster, Crystal Structure, Crystal Habit, Cleavage, Specific gravity, magnetism, taste, effervescence, fluorescence
What material/basis is used to identify the hardness of a mineral?
Moh's hardness scale
When limestone comes into contact with strong acids like HCl it forms small bubbles. What property is described.
Effervescence
What is the difference between color and streak?
color - most obvious; streak - powder form of color
What is the difference between renewable and nonrenewable resources?
Renewable - infinite easy to renew; non renewable - finite because it takes too long to replenish
How do we generate energy/electricity from wind turbines?
solar>wind>turbine moves>generator
How do we generate energy/electricity from solar photovoltaic?
Sunlight>photons in the panel>electricity
How do we generate energy/electricity from geothermal?
Hot groundwater>steam>turbine>generator
How do we generate energy/electricity from coal?
coal combustion>steam generation>turbine>generator
How do we generate energy/electricity from hydropower?
moving water>turbine>generator
How do we generate energy/electricity from nuclear?
Nuclear chain reaction>steam generation>turbine>generator
Why should we use renewable energy?
It reduces greenhouse gas emissions, dependence on oil imports, and air pollution.
