« previous next »

Author Question: Scientists have direct evidence of the Earth's structure to A) the inner core. B) the upper ... (Read 72 times)

folubunmi

  • Hero Member
  • *****
  • Posts: 524
on: Jul 14, 2018
Scientists have direct evidence of the Earth's structure to
 
  A) the inner core.
  B) the upper mantle (250 km (155 mi)).
  C) about 2 km (1.2 mi) from the surface.
  D) 10 km (6 mi) from the surface, based on the deepest well shaft.

Question 2

Which two gases are primarily responsible for the greenhouse effect because of their ability to absorb infrared energy?
 
  A) oxygen and hydrogen
  B) ozone and dust
  C) nitrogen and oxygen
  D) water vapor and carbon dioxide


bhavsar

  • Sr. Member
  • ****
  • Posts: 351
Reply #1 on: Jul 14, 2018
Answer to Question 1

C

Answer to Question 2

D


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

Did you know?

Pink eye is a term that refers to conjunctivitis, which is inflammation of the thin, clear membrane (conjunctiva) over the white part of the eye (sclera). It may be triggered by a virus, bacteria, or foreign body in the eye. Antibiotic eye drops alleviate bacterial conjunctivitis, and antihistamine allergy pills or eye drops help control allergic conjunctivitis symptoms.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

cell structure cell structure
The Core of the Rosette Nebula The Core of the Rosette Nebula
Apply effleurage to both sides of the upper trapezius using loose fists. When moving laterally, ... Apply effleurage to both sides of the upper trapezius using loose fists. When moving laterally, ...
The structure of the Na+-K+-ATPase with K+ bound The structure of the Na+-K+-ATPase with K+ bound
The Upper (A) and Lower (B) Respiratory Tracts (1 of 2) The Upper (A) and Lower (B) Respiratory Tracts (1 of 2)
Age structure for three countries (China) Age structure for three countries (China)
Video: Polymerase chain reaction PCR - Animation

For a complete list of videos, visit our video library