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

Author Question: What was the astronomer Eratosthenes responsible for? A) calculating that a rotating planet would ... (Read 54 times)

fbq8i

  • Hero Member
  • *****
  • Posts: 527
on: Jul 16, 2018
What was the astronomer Eratosthenes responsible for?
 
  A) calculating that a rotating planet would not be perfectly spherical
  B) determining the mass of Earth
  C) determining that the Earth has a distinct concentration of high-density material near the center
  D) using simple surveying and measurements of shadows in sunlight to estimate Earth's size

Question 2

What is the correct order of the layers of the Earth?
 
  A) mantle, continental crust, oceanic crust, inner, and outer core
  B) continental crust, oceanic crust, outer core, mantle, inner core
  C) continental crust, oceanic crust, mantle, outer core, inner core
  D) outer core, oceanic crust, continental crust, mantle, inner core


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

morrie123456

  • Sr. Member
  • ****
  • Posts: 314
Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


fbq8i

  • Member
  • Posts: 527
Reply 2 on: Jul 16, 2018
:D TYSM

sultana.d

  • Member
  • Posts: 320
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Did you know?

Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Ether was used widely for surgeries but became less popular because of its flammability and its tendency to cause vomiting. In England, it was quickly replaced by chloroform, but this agent caused many deaths and lost popularity.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation. Pulsars are highly magnetized, rotating neutron stars that emit a beam of electromagnetic radiation.
The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust The Taung Child, the first of the australopithecines to be discovered, is the type specimen for Aust
Our planet absorbs solar radiation Our planet absorbs solar radiation
Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ... Planet Z-34 has a mass equal to 1/3 that of Earth, a radius equal to 1/3 that of Earth, and an ...
Calculating the coefficient of inbreeding (F) for the offspring of a first cousin marriage Calculating the coefficient of inbreeding (F) for the offspring of a first cousin marriage
Rotating a matrix along the x-axis Rotating a matrix along the x-axis
Video: Power Supply Polyacrylamide Gel Protein Sample

For a complete list of videos, visit our video library