Author Question: The planet(s) of our solar system that are usually or never visible to the naked eye are a. Mars. ... (Read 36 times)

amal

  • Hero Member
  • *****
  • Posts: 572
The planet(s) of our solar system that are usually or never visible to the naked eye are
 
  a. Mars.
  b. Mercury and Neptune.
  c. Saturn, Uranus, and Neptune.
  d. Uranus and Neptune.
  e. Mercury and Venus.

Question 2

____ is the point in Earth's orbit where Earth is closest to the Sun.
 
  a. Aphelion
  b. Perihelion
  c. Precession
  d. The winter solstice
  e. a and d



kjo;oj

  • Sr. Member
  • ****
  • Posts: 328
Answer to Question 1

d

Answer to Question 2

b



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

Automated pill dispensing systems have alarms to alert patients when the correct dosing time has arrived. Most systems work with many varieties of medications, so patients who are taking a variety of drugs can still be in control of their dose regimen.

For a complete list of videos, visit our video library