Question

Which statement is true?

1) Climate change in the last 100 Myr. has been extreme, thus offering a potential explanation of Earth's warming in the past 125 years.
2) Orbital forcing (changes in Earth's axis tilt) are too insignificant in the last 25,000 yrs. to explain Earth's warming in the past 125 years.
3) Retreat of glaciers in the past 8000 years has been uniform, thus potentially explaining Earth's warming in the past 125 years.
True and False

2. El Ninos and volcanic eruptions impact climate only a few years at a time, and do not account for the increase in Earth's warming over the past 125 years.

3.At present, scientist believe that ozone will return to the pre-1980 levels by 2050.

4. Acid precipitation affects the Earth globally, but has higher concentrations in the east coast of north America, central Europe, and Scandinavia.

5. The scattering of red sunlight by a thunderstorm may make the storm appear greenish in color.

6. Cloud temperatures can be converted by computers to render 3-D cloud photos.

7. Scientist have correlated the affect of the "5-day workweek" with increased storm activity on the weekends in major population areas.

8. A series of colored rings may appear surrounding the shadow of an aircraft flying above a cloud with tiny water droplets. Those rings are called the "glory."

9. Forecasting climate is dissimilar to forecasting weather -- different techniques and sciences distinguish these two types of forecasting.

10An AQI of 175 is categorized by the EPA as Very Unhealthy.

Answer 1

1) Climate change in the last 100 Myr. has been extreme, thus offering a potential explanation of Earth's TRUE

Step-by-step explanation:

2) Orbital forcing (changes in Earth's axis tilt) are too insignificant in the last 25,000 yrs. to explain Earth's warming in the past 125 years. FALSE

3) Retreat of glaciers in the past 8000 years has been uniform, thus potentially explaining Earth's warming in the past 125 years. FALSE