Earth Sciences & Geology - December 2007

35. Which of the following statements is true?
A. Over 44 years passed from the first production of CFC's to the first awareness that they could cause environmental damage
B. CFC's are stable, odorless, nonflammable, nontoxic, and noncorrosive chemicals
C. CFC's are found in bubbles in styrofoam and insulation
D. CFC's are important because they help screen out ultraviolrt radiation from reaching Earths surface
E. CFC's remain in the troposphere because they are insoluble in water and chemically unreactive

2007-12-18 13:57:09 · 1 answers · asked by Tommey H 1

Please help! Specific answers please!

2007-12-18 10:35:28 · 5 answers · asked by Anonymous

It has to be between earth, Fire, Wind, and Water. And you can't say that they all have there strengths. You have to choose just one; and give an explanation to your answer.

I believe its fire- I think its utter destruction.

2007-12-18 07:26:34 · 5 answers · asked by lil joker 2

Earth is about 150 million km from the sun. The radiation from the sun travels at 300,000 km/s. How long does it take for the radiation from the sun to reach earth?
Thanks for all yur answers!

2007-12-18 06:17:09 · 6 answers · asked by Anonymous

2007-12-18 05:00:17 · 3 answers · asked by Anonymous

I realize this may be a completely stupid question, but I think my husband, who is an engineer, is playing a joke on me. He says that the magnetic field from power lines will prevent a tree from growing into power lines, and that the branches will actually grow around and away from the lines, avoiding them all together. I say this is not true, because I've seen work crews out cutting branches around power lines. Is he playing a joke on me, or is this a true phenomenon, and if so, can you please provide scientific basis for your explanation?

2007-12-18 03:53:01 · 9 answers · asked by inoffensive nickname 6

2007-12-18 02:23:26 · 8 answers · asked by Tarik H 1

I need help on how to start my science paper.
its on plate tectonics.

its a 10 page report and its due on thursday.
and I need more information.

I also dont know how to start my paper.
I dont know if I should say: Im doing a report on plate tectonics. So I need help on some more ways to start off my report

please help. thanks to anyone who has a good answer

2007-12-17 17:33:52 · 2 answers · asked by Anonymous

I heard from my friend that in 2010 Delhi & Calcutta is going inside the earth i.e through floods, earthquake, as per scientists point of view, whether it is true. Pl. explain briefly regarding this

2007-12-17 16:53:09 · 2 answers · asked by benkezraj 1

2007-12-17 16:06:58 · 3 answers · asked by Anonymous

If possible, include a diagram...
thanks alot!!

2007-12-17 15:49:08 · 1 answers · asked by Stick 2

is produced by reactions between oxygen and the Sun’s energy.
is concentrated in the mesosphere.
comes from volcanic eruptions.
is produced by radioactive decay.

2007-12-17 13:01:42 · 2 answers · asked by Anonymous

It's for my geology final...I'm leaning towards no

2007-12-17 12:49:26 · 13 answers · asked by Anonymous

Help!! does anyboby have any limericks that they made up their selves??

2007-12-17 12:04:53 · 3 answers · asked by Berry 92 1

2007-12-17 11:16:22 · 2 answers · asked by softballbabi32 1

answer these questions in a few words.

2007-12-17 11:11:43 · 1 answers · asked by jessejames2nice 1

2007-12-17 11:10:36 · 1 answers · asked by Marlena W. 1

you have all the power of the universe to keep 3 veggies. do you go with your personal favorites or what's better for mankind?

2007-12-17 11:07:51 · 7 answers · asked by sredmoe 2

2007-12-17 11:04:27 · 1 answers · asked by esimaje n 1

plate tectonics

2007-12-17 11:03:10 · 7 answers · asked by Anonymous

Why dose water fill the bottom of a glass, rather than cling to the sides?

2007-12-17 10:32:12 · 3 answers · asked by Anonymous

2007-12-17 10:27:09 · 3 answers · asked by Anonymous

Science is so pointless in my school...

2007-12-17 10:03:06 · 1 answers · asked by Anonymous

A. zinc oxide
B. sulfur oxide
C. stannous flouride
D. hydrogen peroxide
E. carbon tetrachloride

2007-12-17 09:16:29 · 2 answers · asked by Danielle Boffice(: 1

The increased cooling that a wind can cause is called the__________.


Thanks for your help.

2007-12-17 08:56:52 · 2 answers · asked by kate 1

match the following

1 nearly 200 F at noon a. temperate forest
2 cold winters:hot very dry windy summers b. desert
3 nearly -100 f at noon c grassland
4 below 0 in winter;hot summers d. rainforest
5 below zero in winter; warm summers (70 F) e taiga
6 continuous mild temp. year round f tundra

2007-12-17 08:39:14 · 2 answers · asked by devilgirl 2

Which one makes more more sense overall?

2007-12-17 06:07:22 · 11 answers · asked by Anonymous

2007-12-17 04:40:42 · 2 answers · asked by BC M 1

What is Man's role in the universe?

2007-12-17 04:36:24 · 30 answers · asked by Anonymous

2007-12-17 04:32:36 · 7 answers · asked by crocogator106 1