Question 1: Define the Greenhouse Effect and name three main greenhouse gases involved in this process.

Answer: The Greenhouse Effect is the process by which certain gases in Earth's atmosphere trap heat from the sun, warming the planet. Main greenhouse gases include carbon dioxide (CO2), methane (CH4), and nitrous oxide (N2O).

Question 2: Explain how increased levels of greenhouse gases can lead to climate change.

Answer: Higher levels of greenhouse gases trap more heat in the atmosphere, leading to an overall warming of the Earth's surface, which causes climate change.

Question 3: The concentration of CO2 in the atmosphere increased from 280 ppm to 415 ppm over 150 years. Calculate the percentage increase in CO2 levels during this period.

Answer: Percentage increase = ((415 - 280) / 280) * 100 = 48.21%

Question 4: Identify three human activities that significantly increase greenhouse gas emissions.

Answer: Burning fossil fuels (coal, oil, natural gas), deforestation, and industrial processes.

Question 5: Describe a simple experiment to demonstrate the greenhouse effect using household materials.

Answer: Place two small containers or jars, one with a thermometer and a lid, in sunlight. Cover one jar with clear plastic wrap to simulate greenhouse gases. Observe temperature differences over time to demonstrate how trapped heat increases in the covered jar.

Question 6: What safety precautions should be taken when conducting experiments related to climate change research?

Answer: Wear safety goggles and gloves, work in a well-ventilated area, avoid direct contact with chemicals, and follow proper disposal procedures.

Question 7: Based on recent data, the average global temperature has increased by about 1.2°C since pre-industrial times. Discuss how this temperature rise affects ecosystems and human life.

Answer: A 1.2°C increase leads to melting glaciers and rising sea levels, threatening coastal communities. It causes shifts in ecosystems, affecting plant and animal habitats, and increases the frequency of extreme weather events, impacting agriculture, health, and economies worldwide.

Question 8: Multiple Choice: Which of the following gases has the highest Global Warming Potential (GWP) over a 20-year period?

Answer: Sulfur Hexafluoride (SF6)

Question 9: Fill in the blank: The primary source of methane emissions is ________, which occurs during the decay of organic waste in landfills.

Answer: landfills

Question 10: Explain how the use of renewable energy sources can help reduce greenhouse gas emissions.

Answer: Renewable energy sources like solar, wind, and hydro do not produce greenhouse gases during energy generation, thus reducing the amount of emissions released into the atmosphere and helping mitigate climate change.