GEOLOGY

EARTH SCIENCE

CLIMATE AND ENVIRONMENTAL CHANGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Carbon dioxide and methane are two major greenhouse gases-how could an increase in these greenhouse gases cause climate change?
A
By decreasing the amount of global precipitation.
B
By trapping more heat in the atmosphere, causing temperatures to increase.
C
By cooling major ocean temperatures.
D
By decreasing areas that are prone to drought conditions.
Explanation: 

Detailed explanation-1: -Greenhouse gas molecules in the atmosphere absorb light, preventing some of it from escaping the Earth. This heats up the atmosphere and raises the planet’s average temperature.

Detailed explanation-2: -Methane has more than 80 times the warming power of carbon dioxide over the first 20 years after it reaches the atmosphere. Even though CO2 has a longer-lasting effect, methane sets the pace for warming in the near term. At least 25% of today’s global warming is driven by methane from human actions.

Detailed explanation-3: -Human Activity Is the Cause of Increased Greenhouse Gas Concentrations. Over the last century, burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2).

Detailed explanation-4: -The level of carbon dioxide in Earth’s atmosphere has been rising consistently for decades and traps extra heat near Earth’s surface, causing temperatures to rise.

There is 1 question to complete.