This topic contains a solution. Click here to go to the answer

Author Question: Who is credited with being the first person to accurately determine Earth's circumference? A) ... (Read 17 times)

nenivikky

  • Hero Member
  • *****
  • Posts: 516
Who is credited with being the first person to accurately determine Earth's circumference?
 
  A) Eratosthenes
  B) Erik Thorvaldson
  C) Claudius Ptolemy
  D) Christopher Columbus
  E) Pytheas

Question 2

Energy flow in an ecosystem is ________.
 
  A) bi-directional
  B) cyclic
  C) semi-conservative
  D) top down
  E) unidirectional



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

jackie

  • Sr. Member
  • ****
  • Posts: 324
Answer to Question 1

A

Answer to Question 2

E




nenivikky

  • Member
  • Posts: 516
Reply 2 on: Aug 22, 2018
:D TYSM


tkempin

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Excellent

 

Did you know?

Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

Did you know?

Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

For a complete list of videos, visit our video library