Earth Sciences & Geology - December 2007

Identify and describe the three types of blood vessels in the human body. Your answer should explain the following :
- the differences in their size (width) and structures
-the difference in their main functions and direction of flow
-if they usually carry oxygen - rich and/or oygen- poor blood

Ethan if u answer this u are definatly the smartest person one EARTH!

2007-12-10 11:58:03 · 1 answers · asked by lalalalala 3

How long an wide the volcano is.

2007-12-10 11:15:32 · 6 answers · asked by Heather B 1

thanks.

2007-12-10 11:14:24 · 1 answers · asked by rt1290 6

2007-12-10 09:58:02 · 1 answers · asked by neeky123 1

i need to draw a diagram of how carbon cycles through the earth system. I need to include volcano, rain ocean shelled organisms, limestone, underground coal, car power plant, humans forest fire, tree. plz help

2007-12-10 09:56:50 · 1 answers · asked by mcanadiensfan63 2

When was the last time Mt. St. Helens erupted?

2007-12-10 09:54:15 · 6 answers · asked by Haley J 2

2007-12-10 08:19:39 · 10 answers · asked by zoesmum 1

2007-12-10 08:01:37 · 6 answers · asked by shantel a 1

The only reason i can think of would be that the O-zone layer is getting thinner...

2007-12-10 07:58:05 · 9 answers · asked by Anonymous

2007-12-10 07:57:58 · 10 answers · asked by Stannnn 3

I need this for a project, if it is something besides an epoch what is it? And when did it occur?

2007-12-10 07:56:04 · 1 answers · asked by rover_dude 3

2007-12-10 07:22:32 · 2 answers · asked by Anonymous

how do people use radioactive materials and how are they handled

2007-12-10 07:04:31 · 5 answers · asked by \-696))) es.s.s.AnswERA (((6 1

Flying high like the sun, soaring in the blue enormity of the mountain sky
Descending, like a rock dropping out of the heavens, 
Like a bolt of lightning, screeching as it races right down at its prey, Plunging into icy water with all of Earth's harshness
Reappearing from the water's darkness, climbing up, up into the sky, 
Shedding water off its wings, now glistening like diamonds, as it speeds, higher and higher into the crystal heavens
Stopping as it speeds its climb, 
It peaks, levels and circles once again
The world down below applauds at its feet, The wind whistles with amazement

The water sore from its ripping talons, which slashed the clear water's surface causing ripples, making only minimal noise compared to the damage it suffered

The Eagle, Nature's Predator.

2007-12-10 06:34:51 · 3 answers · asked by Stacy 1

2007-12-10 06:34:15 · 4 answers · asked by STORMY K 3

I've got to learn this for an exam and i cant find any info anywhere!

2007-12-10 05:52:13 · 1 answers · asked by Anonymous

Tell me asap please

2007-12-10 05:46:20 · 1 answers · asked by Anonymous

what effect might global warming have on earth's inhabitants?
give me many examples plss> ^_____________^

2007-12-10 03:28:04 · 5 answers · asked by Anonymous

With the effects of global warming does that be mean there would be less rain and snowfall?

2007-12-10 03:18:05 · 4 answers · asked by Chisa M 1

When will the polar ice caps melt?And how much of the Earth's surface would be covered by water?

2007-12-10 03:16:29 · 1 answers · asked by Chisa M 1

2007-12-10 01:54:45 · 10 answers · asked by Anonymous

Are there any local, national, or global laws or regulations regarding air pollution or on any carbon emitting machinery?

2007-12-10 00:18:42 · 5 answers · asked by Recognition 2

2007-12-09 23:04:51 · 10 answers · asked by majo 1

2007-12-09 22:28:18 · 27 answers · asked by ? 4

2007-12-09 22:27:11 · 11 answers · asked by Anonymous

I just got back from the beach, and found a bunch of gorgeous shells I would love to put on display in my home, but I've heard that shells lose their color once they are away from the salt water long enough. What can I do to keep them bright?

2007-12-09 16:40:23 · 3 answers · asked by Courtney 2

2007-12-09 16:36:45 · 8 answers · asked by Eva 1

its late here, and i forgot about my homework, i need someone who is fresh to answer..cuz im not! i had a "weekend brainwash" since i had a slumber party for my b-day and forgot the answers! can someone help who knows well? i forgot! and i have something else to do! so please help me on this...answers..?
Reviewing Key Terms-write a definition for each of the following words
1.landform
2.plate tectonics
3.atmosphere
4.erosion
5.natural rescource
6.fossil fuel
7. climate
8.vegatation
Reviewing the main ideas
2. how do plate tectonics shape the earth?
3. what are the three groups that geographers devide earths natural rescources into?
4.what is the difference between renewable and non renewable recscources? give an example of each
5.explain the difference between climate and weather?
6.what are earths major climate regions? give an example of the kinds of vegations that grow in each of the climate regions

2007-12-09 16:34:27 · 5 answers · asked by powerball 2

another sample is analyzed by a different geologist using different isotopes. he determines there is 75% Pb daughter product in the sample. he suspects some error and decides to reanalyze the sample. what led him to conclude there was a problem with his initial result?

2007-12-09 14:28:52 · 2 answers · asked by PublicSUD 2

the outer shell which is negtive, the inner mass which is positive and the core which is the most powerfull part of the neutron which itself is a composit of three forces that create what we call the 'strong force'. All force is energy and all energy is force. How do we link the inner core without breaking the bonds of force thus causing the unrestricted release of energy that is bound by these bonds? Such a release would be powerful beyond emagination and likely catistrophic to our existance unless controled. Got any ideas?

2007-12-09 14:27:43 · 1 answers · asked by PROCTORJR1 2