PHSC/210 PHSC210 PHSC 210 WEEK 1 MASTERING GEOLOGY ASSIGNMENT

PHSC 210 WEEK 1 MASTERING GEOLOGY ASSIGNMENT 

Part A

Examine the figure below which is an aerial view of mudslide that occurred in Caraballeda, Venezuela in 1999 after an extensive rainfall. Now select the components of the Earth system that created and were affected by this natural disaster to demonstrate the interconnectivity of Earth system.

 

Select all that apply.

Geosphere

Biosphere

Hydrosphere

Atmosphere

 

 

Item 2

 

Part A - Question 1

By how much would solar have to grow to match the current level of hydroelectric power?

about 2 times

about 10 times

about 60 times

about 100 times

 

Part B - Question 2

Which source represents 32% of renewables?

solar

wind

geothermal

tide

none of them

 

Part C - Question 3

Which energy source’s annual growth rate is about four times greater than that of tidal power?

geothermal

solar

wind

none of the above

 

Part D - Question 4

Assuming that renewable energy sources will contribute more and more to power generation in the future, do you expect the growth rates for these renewable energy sources to increase or decrease over the next 30-year period (2000 to 2030)?

These growth rates are relative to small absolute numbers. They will most likely decrease as the total contribution by renewables increases.

These growth rates will likely stay the same or grow as interest in renewables increases.

 

Part E - Question 5

Which projection has nonrenewables comprising roughly 50% of our energy production in 2050?

projection 1

projection 2

both projections

neither projection

 

Part F - Question 6

Assume depletion of nonrenewables requires renewables (excluding combustibles and waste) to account for more than 30% by 2040. What growth rates of renewables must be achieved and by when?

1% annual growth rate

10% annual growth rate

at least 15% annual growth rate

Current growth rates are sufficient to meet this goal.

 

Item 3

 

Part A

Many pollutants from coal-fired power plants are properly managed today. Which of the following is currently considered to be the biggest threat to the environment?

oxygen

carbon dioxide

methane gas

nitrous oxide

sulfur dioxide

 

Part B

All fossil fuels, including coal, are considered an indirect form of ____________ energy.

nuclear

geothermal

solar

wind

renewable

 

Part C

Where is electricity made at a coal-fired power plant?

cooling tower

silo

generator

boiler

control room

 

Part D

During peak usage, what happens to the cost of electricity?

It almost always increases.

It almost always decreases.

It depends on where the power plant is located.

Cost of electricity always stays the same.

It depends on the time of the year.

 

Part E

What color smoke coming from a coal-fired power plant would indicate wasted fuel?

black

red

clear

white

green

 

Item 4

 

Part A

How much garbage does the average person produce in a month?

50 pounds

150 pounds

250 pounds

350 pounds

450 pounds

 

Part B

When our oil supply is depleted, a new material will need to be used to produce _________.

cardboard

plastic

aluminum

glass

paper

 

Part C

Which of the following would be considered household hazardous waste?

an aluminum can

a tire

a can of spray paint

a plastic milk jug

an alkaline battery

 

Part D

What hazardous material do electronics contain, making them important to recycle properly?

carbon

aluminum

uranium

lead

mercury

 

Part E

What hazardous material do fluorescent light bulbs contain, making it important to dispose of them properly?

uranium

mercury

carbon

aluminum

lead

 

Part F

___________ would help prevent the creation of leachate.

Adding oxygen to solid waste prior to landfilling

Capping the landfill when it is filled to capacity

Adding water to solid waste prior to landfilling

Using a single-liner system rather than a double-liner system

Adding hazardous chemicals to solid waste prior to landfilling

 

Part G

Although “dry tombing” or capping a landfill after it is full is necessary, what problem can it create?

Biodegradable waste can remain for decades in a landfill.

The lining does not allow for microorganisms to enter the landfill.

Waste becomes more toxic when confined.

The lining creates a hazard for landfill workers.

Leachate can break through the lining.

 

 

 

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