Author Question: Changes in daylength and the Sun's altitude above the horizon over the course of the year A) ... (Read 93 times)

ericka1

  • Hero Member
  • *****
  • Posts: 544
Changes in daylength and the Sun's altitude above the horizon over the course of the year
 
  A) produce Earth's rotation.
  B) are phenomena that occur only at the equator.
  C) are responsible for the seasons.
  D) are factors that follow an irregular, random cycle.

Question 2

Which of the following is correct regarding mean sea level?
 
  A) A consistent value has yet to be determined due to all the variables involved in producing the tides.
  B) It is at the same level along the entire North American coast.
  C) It is calculated based on average tidal levels recorded hourly at a given site over a period of many years.
  D) It has very little variability across all ocean basins and, therefore, is treated as an absolute value.



ktidd

  • Sr. Member
  • ****
  • Posts: 319
Answer to Question 1

C

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

GI conditions that will keep you out of the U.S. armed services include ulcers, varices, fistulas, esophagitis, gastritis, congenital abnormalities, inflammatory bowel disease, enteritis, colitis, proctitis, duodenal diverticula, malabsorption syndromes, hepatitis, cirrhosis, cysts, abscesses, pancreatitis, polyps, certain hemorrhoids, splenomegaly, hernias, recent abdominal surgery, GI bypass or stomach stapling, and artificial GI openings.

Did you know?

Sildenafil (Viagra®) has two actions that may be of consequence in patients with heart disease. It can lower the blood pressure, and it can interact with nitrates. It should never be used in patients who are taking nitrates.

For a complete list of videos, visit our video library