Ciclos biogeoquímicos cuáles son los elementos comunes en la tierra y comunes en las moléculas orgánicas — C, H, O, N, P, S carbono, hidrogeno, nitro geno, fosforo, azufre

Qué son los procesos biogeoquímicos

En dónde se almacenan estos elementos

Procesos geológicos que favorecen al ciclo biogeoquímico

Por qué son importantes estos elementos

Por qué es importante estos elementos

Qué ocurre en los ciclos químicos

Your siblings are the only people in the world who know what its like to have been brought up the way you were.

I was one of those children forced into fighting at the age of 13, in my country Sierra Leone, a war that claimed the lives of my mother, father and two brothers. I know too well the emotional, psychological and physical burden that comes with being exposed to violence as a child or at any age for that matter.

The fun little proofs that you can do with algebra - they are sort of like crowd pleasers in a way. Like, the .9 repeating equaling one. It doesn't take a lot of algebra to prove that, and it's really fun. It kind of wows people. It's like they're watching magic happen right before their eyes.

When you sit down and there's nothing, and then you write a song and there's something, that's the most extraordinary feeling.

I love bouncing my words off of someone else's, and the fact that writing a story with someone else guarantees you'll get something you never, ever would have written on your own.

A lot of people don't realize that I started my career in sports and was a sports reporter long before I was on television. I used to be an NBA reporter and an NHL reporter.

I always like to watch comics and it's interesting that you can tell if someone's funny in 10 seconds.

It is no secret that I have read 'The Da Vinci Code' several times. I genuinely believe that 'The Da Vinci Code' and 'Angels And Demons' are, by far, Brown's best works.

If you attempt certain things at the right time, they are easy to accomplish - in fact, they almost get done by themselves. If you undertake them before the time is right, not only will they fail, but they will often become impossible to accomplish even when the time would have been right.

I have the background singers of Ray Charles, the background singers of Smokey Robinson, and the background singers of Barry White and I built a choir around that.

I don't live for my work. My life is my life. That's more important, and I think that helps my work.

Man, if I get a chance to speak on the microphone, I've got to say something somewhere in there. You know, I'm going to laugh and have fun, too, but something has to be said that has some substance, because this is a platform, and the power that we have with words and with this microphone is phenomenal.

I like to play golf, but not at a country club.

I think many years from now, people will still watch television, though it will probably be 150 inches wide. What will change is the ability to get 'CSI' not only on TV but also on the Internet, even watching it in a foreign country as it's playing in the U.S.

In skateboarding, you're never bigger than the streets.

Take this marriage thing seriously - it has to last all the way to the divorce.

When the night comes, streets welcome the lonely souls because they alone can fully understand the lonely streets!

War and peace type products... cannot be added into a national product total until the differences in the valuation due to differences in the institutional mechanisms that determine their respective market prices are corrected for.

Good character is not formed in a week or a month. It is created little by little, day by day. Protracted and patient effort is needed to develop good character.

Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work. And the only way to do great work is to love what you do.

In college, you're kind of designing who you want to be. And I wanted to be a big reader.

I can always tell which is the front end of a horse but beyond that my art is not above the ordinary.

When I turned 50, I realized I was now going to start counting backwards in terms of the years I had left. Then I turned 60, and I just stopped counting. I don't have a fear of death, but I have an awareness that there's a time limit.

I grew up around hardware. I could sell you all the plumbing and electricity you want.