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

Author Question: The principal greenhouse gases in our present atmosphere are A) hydrogen and helium. B) hydrogen ... (Read 97 times)

asan beg

  • Hero Member
  • *****
  • Posts: 570
on: Jul 27, 2018
The principal greenhouse gases in our present atmosphere are
 
  A) hydrogen and helium.
  B) hydrogen sulfide and carbon disulfide.
  C) water vapor and carbon dioxide.
  D) methane and ammonia.
  E) sulfuric acid vapor and carbon dioxide.

Question 2

What is a CCD, and how does it work? Why is it replacing film?
 
  What will be an ideal response?


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Jody Vaughn

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

C

Answer to Question 2

A charge coupled device consists of a grid of thousands of light-sensitive pixels that build up a digital image that can be stored on computer as light strikes it. It is digital, so it can be placed directly on magnetic tape or disks, or sent over a computer network. CCDs are also much more sensitive to fainter objects than are the fastest photo films.


asan beg

  • Member
  • Posts: 570
Reply 2 on: Jul 27, 2018
YES! Correct, THANKS for helping me on my review

jamesnevil303

  • Member
  • Posts: 337
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.

Did you know?

The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."

Did you know?

There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

Did you know?

It is important to read food labels and choose foods with low cholesterol and saturated trans fat. You should limit saturated fat to no higher than 6% of daily calories.

Did you know?

Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.

An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution An illustration of the helium atom, depicting the nucleus (pink) and the electron cloud distribution
A turbine wheel is turned by the expanding exhaust gases. A turbine wheel is turned by the expanding exhaust gases.
Horizontal Pressure Gradients in the Upper Atmosphere Horizontal Pressure Gradients in the Upper Atmosphere
The Role of Gases in the Atmosphere The Role of Gases in the Atmosphere
How to calculate present value using the compound interest formula (Question 2) How to calculate present value using the compound interest formula (Question 2)
Earth Atmosphere Earth Atmosphere
Video: What are Strong & Weak Acids and How they're different?

For a complete list of videos, visit our video library