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

Author Question: Which of the following describes erosion? A) the excavation of bowl-shaped depressions by ... (Read 123 times)

meagbuch

  • Hero Member
  • *****
  • Posts: 568
on: Jul 27, 2018
Which of the following describes erosion?
 
  A) the excavation of bowl-shaped depressions by asteroids or comets striking a planet's surface
  B) the eruption of molten rock from a planet's interior to its surface
  C) the disruption of a planet's surface by internal stresses
  D) the wearing down or building up of geological features by wind, water, ice, and other phenomena of planetary weather

Question 2

What is the source of luminosity for protostars that have not yet become hot enough for fusion in their cores?
 
  A) light absorbed from nearby stars B) energy released by infalling matter
  C) fusion in their low-density outer layers D) fission from concentrated radioactive elements


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kristenb95

  • Sr. Member
  • ****
  • Posts: 318
Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

B


meagbuch

  • Member
  • Posts: 568
Reply 2 on: Jul 27, 2018
Gracias!

raili21

  • Member
  • Posts: 324
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Aspirin may benefit 11 different cancers, including those of the colon, pancreas, lungs, prostate, breasts, and leukemia.

Did you know?

Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

Did you know?

In 1886, William Bates reported on the discovery of a substance produced by the adrenal gland that turned out to be epinephrine (adrenaline). In 1904, this drug was first artificially synthesized by Friedrich Stolz.

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?

No drugs are available to relieve parathyroid disease. Parathyroid disease is caused by a parathyroid tumor, and it needs to be removed by surgery.

Catbirds and robins reject objects shaped similarly to cowbird eggs no more frequently than objects Catbirds and robins reject objects shaped similarly to cowbird eggs no more frequently than objects
Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi
Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi Impacts of glaciers on landscapes can be seen as (a) a U-shaped valley in Labrador, (b) a drumlin fi
Willem de Zwart: Still Life with Apples in a Delft Blue Bowl, 1880–1890 Willem de Zwart: Still Life with Apples in a Delft Blue Bowl, 1880–1890
A Karman Vortex air flow sensor uses a triangle-shaped rod to create vortexes as the air flows ... A Karman Vortex air flow sensor uses a triangle-shaped rod to create vortexes as the air flows ...
Several Mechanisms of Erosion Several Mechanisms of Erosion
Video: Glycolysis - and oxygen

For a complete list of videos, visit our video library