Spontaneous mutations are very rare, and advantageous mutations are even rarer.

Your chances are very low.

The chances are that it will rain today.

These butterflies are rare in our country.

What are my chances of surviving?

What are the chances of that happening?

We know very well what our chances are.

Seasonal variations are pronounced, but extremes in temperature are rare.

True friendships are even rarer than diamonds.

They are rare and are hunted for food.

Chances of promotion are slim in this firm.

These are the rarest of all main sequence stars.

What are the chances that Tom will actually come?

What are the chances Tom will actually come?

Large tracts of forest are now rare in Central America.

Religious tension between Catholics and Protestants in the country has been rare.

Sometimes two verses are sung, and on rare occasions, three.

Frosts are rare in the city they are more common at higher elevations.

Odds are, you're not going to care in five years.

Cloud types are mainly low stratus and fog cumuli forms are rare.

Successful Wagnerian sopranos are rare and often Wagnerian roles are performed by Italianate dramatic sopranos.

But it's a very rare occasion where you'll get a kid who is vegan.

And the odds are seven to one against your finding the prince.

What are the chances of General Michael Suleiman becoming our next president?

There will be other chances.

Binary stars that are both visual and spectroscopic binaries are rare, and are a precious source of valuable information when found.

In general only one or two verses are sung, but on rare occasions three.

Recurrent novae like RS Ophiuchi (those with periods on the order of decades) are rare.

I collect rare coins.

Three cards, three chances.

I've given you too many chances.

I've had lots of chances.

Flash floods are rare but have recently occurred around the spring and fall seasons.

The odds are against us.

I've given you too many chances.

Most ester local anesthetics are metabolized by pseudocholinesterases, while amide local anesthetics are metabolized in the liver.

The chances of this conspiracy are rare but you never know with these opportunistic and individualistic politicians.

But such success stories are far too rare to constitute a golden age of genetics.

The abundance of deuterium changes slightly from one kind of natural water to another (see Vienna Standard Mean Ocean Water).

The odds are in his favor.

Both birds are rare and protected, though some forest is still threatened by logging in addition to the long standing threat of hurricanes.

The principal sources of rare earth elements are the minerals bastnäsite, monazite, and loparite and the lateritic ion adsorption clays.

Some copies with the original artwork still exist, and are now a rare collectors item.

And then you draw the conclusion the odds of winning the lottery are 100 percent.

Importance of eclogite Eclogite is a rare and important rock because it is formed only by conditions typically found in the mantle or the lowermost part of thickened crust.