« previous next »

Author Question: The four seasonsspring, summer, fall, and winterare caused by the Sun's changing its daily altitude ... (Read 44 times)

roselinechinyere27m

  • Hero Member
  • *****
  • Posts: 557
on: Jul 28, 2018
The four seasonsspring, summer, fall, and winterare caused by the Sun's changing its daily altitude over a period of 1 year. The Sun's altitude changes
 a. simply because Earth revolves eastward about the Sun.
  b. simply because Earth rotates on its axis.
  c. simply because Earth's axis is tilted 23.5 from the normal to the ecliptic plane.
  d. because of the combined effects of (A) and (C).

Question 2

When heat is added to a closed system, it goes into
 a. work only.
  b. entropy only.
  c. internal energy only.
  d. either (A) or (C) or both.


Zebsrer

  • Sr. Member
  • ****
  • Posts: 284
Reply #1 on: Jul 28, 2018
Answer to Question 1

d

Answer to Question 2

d


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

Did you know?

The tallest man ever known was Robert Wadlow, an American, who reached the height of 8 feet 11 inches. He died at age 26 years from an infection caused by the immense weight of his body (491 pounds) and the stress on his leg bones and muscles.

Did you know?

You should not take more than 1,000 mg of vitamin E per day. Doses above this amount increase the risk of bleeding problems that can lead to a stroke.

Did you know?

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

Did you know?

Famous people who died from poisoning or drug overdose include, Adolf Hitler, Socrates, Juan Ponce de Leon, Marilyn Monroe, Judy Garland, and John Belushi.

The mass media not only reflect gender stereotypes but they also play a role in changing them. ... The mass media not only reflect gender stereotypes but they also play a role in changing them. ...
Effects of Earth’s Changing Orientation: Solar Angle Effects of Earth’s Changing Orientation: Solar Angle
Have at least one citrus fruit (such as an orange or grapefruit) daily Have at least one citrus fruit (such as an orange or grapefruit) daily
The Rise and Fall of Separation Anxiety The Rise and Fall of Separation Anxiety
Vaginal Discharge with Microorganisms Caused by Trichomoniasis Vaginal Discharge with Microorganisms Caused by Trichomoniasis
A Changing Planet — 1e A Changing Planet — 1e
Video: Fertilization and Development

For a complete list of videos, visit our video library