Science Unit 3 Lesson 4 Flashcards
What are greenhouses gases and whar are examples of it?
A greenhouse has is an atmospheric gas that absorbs and reradiates the sun’s energy. Carbon dioxide, water vapor, and methane are examples of greenhouse gases.
Are most greenhouse gases added to the atmosphere naturally or by humans action.
Some greenhouse gases are added to the atmosphere by natural occurrences, such as volcanic eruptions. However, most greenhouse gases are added by human action.
Facts that show the concentration of cardon dioxide in our atmosphere is rising.
the concentration of carbon dioxide in the atmosphere is currently approximately 409 parts per million (ppm), which has led Earth’s average surface temperature to increase 0.8°C (1.4°F) since 1880. These numbers do not seem significant, but they are evidence for considerable impact on climate.
How does water on Earth negatively affect global warming?
As temperatures rise, more of Earth’s water gains enough energy to become water vapor and enter the atmosphere. Because water vapor is a greenhouse gas, this in turn leads to absorption of yet more energy by the atmosphere. Global temperatures rise, and the cycle continues. Increased energy and water vapor in the atmosphere affect climate. Understanding how this feedback loop works can help predict future climate change.
Hoe can climate change affect the amount of precipitation?
Increased temperatures and increased water vapor in the atmosphere also contribute to an increase in the occurrence and the severity of storms in some places. In other regions, climate change results in less precipitation and dry conditions.
How do you read a precipitation model?
The white or very light areas indicate very little change compared to historical data, brown shows decreased precipitation, and green shows increased precipitation.
How much has Antartica’s temperautre risen?
Antartica has risen 3°C over the past 50 years.
Side affects of the Antartica’s risen temperature?
Less ice means exposed land absorbs more solar energy, raising surface
temperatures. It absorbs almost all the solar radiation that hits it, so when ice melts, global temperatures rise, which affects climates around the world.
How are serve storms related to the sea rising?
In addition, sea level is rising at a rate of 3.3 mm/yr. The combination of severe storms and rising sea levels has caused increased flooding, especially in coastal areas such as North Carolina.
