GEOLOGY

EARTH SCIENCE

CLIMATE AND ENVIRONMENTAL CHANGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Pick the most accurate statement from the list below.
A
Greenhouse gasses, even in the smallest amounts, are dangerous for our planet.
B
There is no correlation between temperature change and the concentration of Carbon dioxide on Earth.
C
A certain amount of Carbon Dioxide is naturally occurring and Earth needs CO2 in the atmosphere to make our planet livable.
D
Ice core studies have shown that Carbon Dioxide levels have remained relatively constant over the history of our Earth.
Explanation: 

Detailed explanation-1: -CO2 makes up only about 0.04% of the atmosphere, and water vapor can vary from 0 to 4%.

Detailed explanation-2: -By adding more carbon dioxide to the atmosphere, people are supercharging the natural greenhouse effect, causing global temperature to rise.

Detailed explanation-3: -They tell us that levels of carbon dioxide (CO2) in the atmosphere are higher than they have been at any time in the past 400, 000 years. During ice ages, CO2 levels were around 200 parts per million (ppm), and during the warmer interglacial periods, they hovered around 280 ppm (see fluctuations in the graph).

Detailed explanation-4: -2:13 know that carbon dioxide is a greenhouse gas and that increasing amounts in the atmosphere may contribute to climate change. Carbon dioxide (CO2) is a greenhouse gas. It absorbs infra-red radiation and therefore warms the atmosphere. This leads to global warming.

There is 1 question to complete.