The magnitude and impacts of desertification vary greatly from place to place, and change over time.

What you're looking at is a signature of bacterial communities in the outdoor air, and how they vary over time.

Unlike capital flows, which vary according to the economic environment, remittances tend to stay stable and are less volatile over time.

The amount of time spent asleep can vary from person to person.

The temperature in different places can vary greatly at the same time of year.

Evaluations of particular outputs and projects are done from time to time but they vary in quality and peer reviews are sporadic.

The amounts vary from a few United States dollars to over 1,000 worth of shillings for each occasion.

An IEA survey shows that tariff rates charged for renewable energy equipment in over 100 countries vary widely.

You can vary enormously.

Macroeconomic models have tended to neglect the role of institutions, ranging from trade unions and employer associations to property rights regimes and mechanisms for redistribution. Taking them seriously means considering long historical intervals, because institutions change slowly and vary significantly only over time.

Opinions vary from person to person.

Levels of compliance continue to vary, however.

It changes over time.

rechecked occasionally over time.

They evolve over time.

Results vary, of course. This is pretty typical.

And each of these can vary by country.

And these vary tremendously from region to region.

However, the reasons for this vary a lot.

They do change over time.

I know I'm over time.

A song must be heard in sequence over time, and you must play it back in sequence over time.

So over time, time and space have compressed because of this.

However, a payload may vary depending on military requirements.

At the country level, programmes vary significantly in scope.

As a result, they tend to vary between countries.

The fees vary for each of the managers contracted.

Assets grow with contributions and vary with investment performance.

Think about knowing that over time.

Likewise, every connectome changes over time.

In case you run over time.

These mechanisms have evolved over time.

They also cause the light from the star to vary.

Coverage rates, content and strategies for reaching families vary widely.

The nature and scale of threats inherent in hazards vary.

Monitoring and assessment arrangements vary from one country to another.

These global trends vary widely, however, between countries and regions.

Please come over if you have time.

The summer was over in no time.

Additional manuals may be developed over time.

So silk fibers vary in their strength and also their extensibility.

The reasons vary state to state, but mostly in the details.

The sources of marine waste vary from one country to another.

In addition, supply and demand vary widely from region to region.

They may vary depending on the size and complexity of procurement.