This topic contains a solution. Click here to go to the answer

Author Question: Over the span of 70 million years, Earth's climate A) was much cooler in the distant past than ... (Read 108 times)

lindiwe

  • Hero Member
  • *****
  • Posts: 577
Over the span of 70 million years, Earth's climate
 
  A) was much cooler in the distant past than the present.
  B) has remained fairly constant, only showing a warming trend during the past 200 years.
  C) was much warmer in the distant past than the present.
  D) was warmest approximately 10 million years ago and coolest about 56 million years ago.

Question 2

In 1974, Dr. Rowland and Dr. Molina made what observation regarding ozone (O3)?
 
  A) Ground-level O3 irritates human eyes and respiratory systems.
  B) Anthropogenic O3 releases were a major culprit in global warming.
  C) The photochemical interactions of chlorofluorocarbons and O3.
  D) Automobile exhaust and sunlight were producing photochemical smog.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Kedrick2014

  • Sr. Member
  • ****
  • Posts: 359
Answer to Question 1

C

Answer to Question 2

C




lindiwe

  • Member
  • Posts: 577
Reply 2 on: Jul 14, 2018
Excellent


irishcancer18

  • Member
  • Posts: 310
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

When taking monoamine oxidase inhibitors, people should avoid a variety of foods, which include alcoholic beverages, bean curd, broad (fava) bean pods, cheese, fish, ginseng, protein extracts, meat, sauerkraut, shrimp paste, soups, and yeast.

Did you know?

About 100 new prescription or over-the-counter drugs come into the U.S. market every year.

Did you know?

Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

For a complete list of videos, visit our video library