This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Sunspots are dark because a. regions of the photosphere are obscured by material in the ... (Read 55 times)

student77

  • Hero Member
  • *****
  • Posts: 567
on: Jul 27, 2018
Sunspots are dark because
 
  a. regions of the photosphere are obscured by material in the chromosphere.
  b. shock waves move through the photosphere.
  c. the Sun rotates differentially.
  d. they are cooler regions than the photosphere.
  e. they radiate their energy into space faster than the rest of the photosphere.

Question 2

The eccentricity of a planet's orbit describes
 
  a. westward motion in the night sky when observed on successive nights.
  b. the deviation in shape when compared to a circle.
  c. its tilt with respect to the ecliptic plane.
  d. the tilt of the planet's rotational axis with respect to the ecliptic.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

JCABRERA33

  • Sr. Member
  • ****
  • Posts: 344
Reply #1 on: Jul 27, 2018
Answer to Question 1

d

Answer to Question 2

b


student77

  • Member
  • Posts: 567
Reply 2 on: Jul 27, 2018
Wow, this really help

amcvicar

  • Member
  • Posts: 341
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

Did you know?

The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).

The regions of the brain. The regions of the brain.
The uterus. Cutaway view shows regions of the uterus and cervix and its relationship to the uterine The uterus. Cutaway view shows regions of the uterus and cervix and its relationship to the uterine
Regions of the abdominopelvic area Regions of the abdominopelvic area
Locations of Sunspots Throughout the Sunspot Cycle Locations of Sunspots Throughout the Sunspot Cycle
Industrial Regions Industrial Regions
Canada's forest regions Canada's forest regions
Video: Conjunctivitis

For a complete list of videos, visit our video library