Unit 5; Alternative Portfolio: Human impact.
61. Why was there a large increase in the human population after the Industrial Revolution?
2. What is one problem caused by a large human population?
3. What is an example of humans over-hunting an animal to extinction?
4. How did humans help prevent bison from being hunted to extinction?
5. What was the impact when humans diverted rivers flowing into the Aral sea and used the water to irrigate farmland?
6. What is one problem, discussed in the video, with humans using oil as an energy source?
7. What are some alternatives to using oil and fossil fuels as an energy source?
8. What types of items can be recycled?
9. Explain ways in which scientists and engineers are helping to protect our planet?
10. What is an example of something you can do to help preserve our resource of fresh water?
11. What is one type of scientist that helps save our planet and what do they do?
12. How much water does Adam every year is taking a 10 minute shower a day?
1. The large increase in human population after the Industrial Revolution was mainly due to advancements in technology and medicine, which led to improved living conditions and reduced mortality rates.
2. One problem caused by a large human population is overconsumption and depletion of natural resources, leading to environmental degradation and habitat loss.
3. An example of humans over-hunting an animal to extinction is the Passenger Pigeon, which was once one of the most abundant bird species in North America but became extinct in the early 20th century due to excessive hunting and habitat destruction.
4. Humans helped prevent bison from being hunted to extinction by establishing protected areas, such as national parks, where hunting was strictly regulated or prohibited. Additionally, conservation efforts and breeding programs were implemented to increase the bison population.
5. The diversion of rivers flowing into the Aral Sea and the extensive use of its water for irrigation caused the sea to shrink drastically. It resulted in the ecological collapse of the sea, loss of biodiversity, and generated environmental and health problems for the surrounding regions.
6. One problem discussed in the video with humans using oil as an energy source is the release of greenhouse gases, particularly carbon dioxide, during its combustion, contributing to climate change and global warming.
7. Some alternatives to using oil and fossil fuels as an energy source include renewable energy sources such as solar power, wind power, hydropower, and bioenergy. Additionally, energy efficiency measures and the development of electric vehicles are also seen as alternatives.
8. Items that can be recycled include paper, cardboard, plastic bottles, aluminum cans, glass containers, and electronic waste (e-waste) such as old computers and cell phones.
9. Scientists and engineers are helping to protect our planet through various ways, including researching and developing renewable energy technologies, designing sustainable infrastructure and urban planning, implementing conservation strategies, studying and mitigating climate change, and promoting environmental education and awareness.
10. An example of something you can do to help preserve our resource of fresh water is to practice water conservation in your daily life, such as taking shorter showers, fixing leaks, using water-efficient appliances, and reusing water when possible.
11. One type of scientist that helps save our planet is an environmental scientist. They study the environment, its ecosystems, and the impact of human activities on natural resources. They conduct research, analyze data, and provide recommendations for sustainable practices and policies to protect the environment.
12. The amount of water Adam uses every year by taking a 10-minute shower every day can vary depending on the flow rate and efficiency of his showerhead. On average, a 10-minute shower with a standard showerhead can use around 50 gallons (190 liters) of water. However, using water-saving showerheads can significantly reduce water consumption.