Environmental Impact of Agriculture

Dr. Forrester discusses the challenges of a growing global population, focusing on the impact on resources and agriculture. The video explores how modern farming techniques, such as machinery and chemical use, have increased production but also caused environmental issues. It highlights the benefits of organic farming and its positive effects on the ecosystem. The video also mentions Rachel Carson's role in raising awareness about harmful chemicals and suggests sustainable practices for better environmental impact.

What has been a major consequence of the population explosion in the past century?

• Greater demand for food and resources

• Decreased need for resources

• Increased availability of farmland

• Reduction in global population

How have farms managed to meet the increased food demand despite fewer numbers?

• By importing more food

• By reducing crop variety

• Through the use of large machinery and chemicals

• By increasing the number of farmers

What is a significant downside of using fertilizers and pesticides in agriculture?

• They reduce the need for machinery

• They can cause environmental harm

• They are too expensive for most farmers

• They increase crop variety

What distinguishes organic farming from conventional farming?

• Higher crop yields

• Use of synthetic fertilizers

• Increased use of machinery

• Avoidance of chemical pesticides

Who was Rachel Carson and what was her contribution to environmental awareness?

• An advocate for increased chemical use

• A politician who supported industrial farming

• A scientist who raised awareness about DDT

• A farmer who invented new pesticides