BIOLOGY - Environment - Carbon Footprints

The video tutorial discusses how individuals can reduce their carbon footprint to combat climate change. It explains the concept of carbon footprint, highlighting the differences in carbon emissions across various regions. The tutorial provides practical tips for reducing personal carbon emissions, such as improving home insulation, opting for sustainable travel and food choices, and enhancing energy efficiency. It emphasizes the importance of using renewable energy sources and recycling to minimize environmental impact.

What is the primary factor that determines an individual's carbon footprint?

• The amount of natural resources they consume

• The amount of extra carbon dioxide their lifestyle adds to the atmosphere

• The number of trees they plant

• The amount of water they use

Which of the following is NOT a recommended way to reduce energy use in homes?

• Installing triple glazing windows

• Using large windows facing the midday sun

• Insulating walls and attics

• Building verandas in cold climates

Why is it more energy-efficient to produce dairy and sheep meat in New Zealand for the UK?

• Because of the lower labor costs

• Due to the absence of fertilizer use

• Because of the advanced technology used

• Due to the proximity to the UK

What percentage of energy used by a neurofilament light bulb is converted into useful light?

• About 10%

• Less than 3%

• Around 50%

• Nearly 100%

What is a key benefit of recycling unwanted materials?

• It eliminates the need for transportation

• It uses less energy than starting with fresh raw materials

• It is more cost-effective than using new materials

• It completely stops carbon emissions