Why do we have two words for a big city: metropolis and megalopolis?
A metropolis is just one city while a megalopolis includes many different cities
. … Your best friend Sky is hoping to start a new city on an island in the Pacific.
Which of the following is one of many concerns with the practice of fracking quizlet?
Which of the following is one of the many concerns with the practice of fracking?
Fracking may cause volcanoes to erupt by undermining the seismic stability of an area
. Fracking requires a huge amount of water.
What is one way that the entire world is reaching and abusing the Earth’s carrying capacity?
What is one way the people of the United States, and the world, are reaching and abusing the Earth’s carrying capacity?
Pollution
, like many other issues in the world, has become a global issue.
Why is e waste become an issue especially in the 21st century?
Why has e-waste become an issue, especially in the 21st century? E-waste not only contains harmful chemicals, but
electronics become obsolete every six months or so
, which means, every six months people are throwing away perfectly good electronics in order to get the newest one.
Which one of the following is one of the many concerns with the practice of fracking?
Air pollution and water contamination due to the toxic chemicals used in hydraulic fracturing
are the greatest concerns within fracking sites, while the need for wastewater disposal and shrinking water supplies are also pressing issues directly related to the procedure.
Which type of nations are the greatest sources of greenhouse gases?
Most of the world’s greenhouse gas emissions come from a relatively small number of countries.
China, the United States
, and the nations that make up the European Union are the three largest emitters on an absolute basis. Per capita greenhouse gas emissions are highest in the United States and Russia.
Which of the following is the best definition of social change?
The change in society created through social movements as well as external factors like environmental shifts or technological innovations
.
What is Earth’s human carrying capacity?
Many scientists think Earth has a maximum carrying capacity of
9 billion to 10 billion people
. One such scientist, the eminent Harvard University sociobiologist Edward O. Wilson, bases his estimate on calculations of the Earth’s available resources.
How Many People Can Earth Support?
The average American uses about 9.7 hectares. These data alone suggest the Earth can support at most one-fifth of the present population,
1.5 billion people
, at an American standard of living. Water is vital.
Is Earth overpopulated?
A 2015 article in Nature listed overpopulation as a pervasive science myth. Demographic projections suggest that population growth will stabilise in the 21st century, and many experts believe that global resources can meet this increased demand, suggesting a global overpopulation scenario
is unlikely
.
What is the e-waste problem?
There are also problems with toxic materials leaching into the environment. These practices can expose workers to high levels of contaminants such as lead, mercury, cadmium and arsenic, which can lead to irreversible health effects, including cancers,
miscarriages
, neurological damage and diminished IQs.
Why is e-waste a bigger problem now?
The new report also predicts global e-waste — discarded products with a battery or plug — will reach 74 million tonnes by 2030, almost a doubling of e-waste in just 16 years. E-waste is
a health and environmental hazard because it contains toxic additives or hazardous substances such as mercury
.
What is e-waste quizlet?
E-waste.
discarded electronic equipment such as computers, cell phones, television sets
, etc. Recycle. use again after processing.
What are the positive effects of fracking?
Fracking has upended the American energy system. It has brought substantial benefits to the nation in terms of lower energy prices,
greater energy security, reduced air pollution
, and fewer carbon emissions (although its long-run impact on carbon emissions is less clear).
Is fracking good or bad?
At the same time,
fracking
has led to a reduction in greenhouse gas emissions in the US. Wastewater injection from fracking wells has also caused a spike in earthquakes. It has caused local air quality and safety problems. And while they’re cleaner than coal, oil and gas from fracking are still fossil fuels.
What chemicals are used in fracking?
Chemicals Used in Fracking
Common ingredients include
methanol, ethylene glycol, and propargyl alcohol
. Those chemicals, along with many others used in fracking fluid, are considered hazardous to human health.
