Por qué son importantes estos elementos — - agua: componente más abundante en los seres vivos - carbono: se encuentra en todas las moléculas y macromoléculas, componente FUNDAMENTAL de los desechos fósiles -nitrógeno: contiene info. Para crear la vida, para formar material genético, componente de ADN y ARN

Ciclos biogeoquímicos cuáles son los elementos comunes en la tierra y comunes en las moléculas orgánicas

Qué son los procesos biogeoquímicos

En dónde se almacenan estos elementos

Procesos geológicos que favorecen al ciclo biogeoquímico

Por qué es importante estos elementos

Qué ocurre en los ciclos químicos

Things I say are sometimes silly.

To be fair, lying is part and parcel of public life. Every politician has lied about something because they are owned by the special interest groups that finance their elections.

Give, but give until it hurts.

In most sports, your brain and your body will cooperate... But in rock climbing, it is the other way around. Your brain doesn't see the point in climbing upwards. Your brain will tell you to keep as low as possible, to cling to the wall and not get any higher. You have to have your brain persuading your body to do the right movements.

We have a presidential candidate who's deleted emails and done things illegally and is a presidential candidate. That doesn't make sense to me, because if that was any other person, you'd be in prison. So what is this country really standing for?

The people I still talk to are some of the old Galaxy players all over the place. That's a bond that's pretty special.

The experienced fighting pilot does not take unnecessary risks. His business is to shoot down enemy planes, not to get shot down.

I love to make songs out of some of those shadows - you know, some of the things you lie awake thinking about, social anxieties and romantic insecurities and all that stuff.

The sun's energy warms the world. But when you focus it through a magnifying glass, it can start a fire. Focus is powerful.

I don't focus on happiness as a goal or an end.

Whatever you can do or dream you can begin it. Begin it now.

I started getting more and more active around immigration reform because this was such a waste of lives, such a waste of potential, such a waste for our country not to have the human capital that we developed - geared toward improving our entire society.

I could be the Greta Garbo of comedy, very secluded, but Garbo had a man who was beyond rich to support her.

Find the good and praise it.

It was very hard for all of us. It's still very hard. The anniversary of his death just passed, and every single one of his friends, still, after all these years... it's unbelievable.

I like cooking, but I think someone else ought to do the dishes.

I am a news presenter, a news broadcaster, an anchorman, a managing editor - not a commentator or analyst.

I was the person, I think, who first said the evening of September 11 that we shouldn't hold this against the Arab community, the Muslim community. We should focus on the individuals and that groups that were involved and not participate in group blame.

Familiarity breeds contempt

When the French nation gradually came into existence among the ruins of the Roman civilization in Gaul, a new language was at the same time slowly evolved.

Nothing is so commonplace has the wish to be remarkable.

Writing is something that's great because you get to write every thought that's on your mind; you take your time.

There is nothing more joyful to me than hearing a live audience laugh. Especially when I planned it that way!

I don't think anybody wants to see a dour 'Star Trek' movie.