DEFORESTATION IN THE AMAZON EXAM QUESTIONS

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DEFORESTATION IN THE AMAZON EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -19 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: The amount of deforestation varies between countries, which 2 countries accounted for almost half of global deforestation?

Answer:

Brazil and Indonesia.Question 2: Why is population growth causing deforestation in the Amazon? How much does it account for?

Answer:

population growth and migration to the area is putting pressure on the Amazon rainforest, especially as the Brazilian government offers land in the rainforest to poor people from overcrowded cities.for example, many farmers have been settled along the Tran-Amazonian highway.(OTHER - split between 1-2%) Question 3: Why did deforestation in Brazil decrease by about 80% between 2004 to 2012?

Answer:

• as part of the Paris Agreement, Brazil pledged to reduce its carbon emissions by 37% by 2025.
• increased global awareness about deforestation has reduced the demand for products from

deforestation areas. for instance, the UK supermarket Iceland stopped manufacturing palm oil products in 2018.

Question 4: The global rate of deforestation is remarkably high. What is a statistic that shows this?

Answer:

from 2007 to 2017, an average of 22 million hectares of forest were lost each year.the rate varies, but it is generally increasing.Question 5: Why is the Amazon being cut down for road building? What knock-on effect does this have? How much does it account for?

Answer:

the 4000km Trans-Amazonian Highway connects the Brazilian coast to Peru, Colombia and Ecuador, through the Amazon.new roads built for logging have opened up areas that were previously too hard to get to, destroying and threatening more of the forest.(OTHER - split between 1-2%)

Question 6: What are some efforts to decrease deforestation in Brazil?

Answer:

protecting over 44% of the Amazon using funding from the World Bank, the WWF, and other groups.the Brazilian government uses satellite imagery to prevent large-scale illegal logging.

Question 7: What is deforestation?

Answer:

the removal of trees from forests.it's happening in many tropical rainforests, like the Amazon.

Question 8: What are the reasons that the Amazon is being cut down?

Answer:

CSCMEPR

• commercial farming
• subsistence farming
• commercial logging
• mineral extraction
• energy development
• population growth
• road building

Question 9: In which 2 countries are rates of deforestation increasing?

Answer:

Cambodia and Liberia.Question 10: Why is commercial farming causing deforestation in the Amazon? How much does it account for?

Answer:

forest is cleared to make space for cattle grazing or for huge plantations.cattle ranching is the main cause of deforestation in the Amazon - in Brazil there are around 200 million cattle on about 450,000km^2 of pasture.soy is another commercially farmed crop. up to 250,000km^2 of former forest has been used for its production. rice, corn and sugar cane is also grown.(65-70% for cattle ranching, an additional 5-10% for other commercial farming) Question 11: Why is subsistence farming causing deforestation in the Amazon? How much does it account for?

Answer:

forest is cleared by small-scale farmers who need land to grow food for themselves and their families.many Indigenous people are subsistence farmers.

(20-25%)

Question 12: Explain the economic impacts of deforestation.

Answer:

economic development, farming in particular, has brought wealth to many Amazonian countries. for example, in March 2018, Brazil exported almost $600 million of beef. Brazil is also the world's 2nd largest exporter of soy beans.the mining industry creates jobs for lots of people. the Buenaventura mining company in Peru employs over 8000 people.logging contributes a huge amount to Brazil's economy, but it can destroy resources that countries depend on, like timber, and reduce the attractiveness of the area to tourists.local Brazilian rubber tappers who extract natural rubber from rubber trees have lost their livelihoods as trees have been cut down.

Question 13: Explain how deforestation leads to climate change.

Answer:

Trees remove CO2 from the atmosphere - the Amazon stores around 140 billion tonnes of carbon.Deforestation releases some of this as CO2 which causes global warming.Up to 75% of Brazil's CO2 emissions come from deforestation.Deforestation is responsible for 20% of global CO2 emissions a year - more than all the world's annual transport emissions combined.

Question 14: Why is energy development causing deforestation in the Amazon? How much does it account for?

Answer:

building hydroelectric dams floods large areas of forest. the construction of the Balbina Dam (near Manaus, Brazil) flooded 2400km^2 of rainforest.(OTHER - split between 1-2%)

Question 15: Briefly introduce the Amazon.

Answer:

the Amazon is the largest rainforest on Earth. it covers an area of around 8 million km^2 and includes parts of Brazil, Peru, Columbia, Venezuela, Ecuador, Bolivia, Guyana, Suriname and French Guiana.almost 18 million hectares of forest were lost between 2001 and 2012, an average of 1.4 million hectares were lost per year in this period.it's estimated that almost 30% of the Amazon will have been deforested by 2030 if the current rate of deforestation is not reduced.

Question 16: What are the environmental impacts of deforestation?

Answer:

CS

• climate change
• soil erosion

Question 17: Why is commercial logging causing deforestation in the Amazon? How much does it account for?

Answer:

the Amazon is full of valuable hardwood trees, such as mahogany, which makes logging extreme tempting to both legal and illegal businesses.

(2-3%)

Question 18: Explain how deforestation leads to soil erosion.

Answer:

Brazil is losing up to 100 tonnes of topsoil per hectare each year because of soil erosions. this may lead to landslides and flooding in the future.with less tree canopy to intercept rain and fewer tree roots to absorb it, more water reaches the soil. this reduces soil fertility as nutrients in the soil are washed away.commercial and subsistence farmers are then forced to find new areas to farm, leading to further deforestation.