None of this to say that there aren't challenges presented by immigration.
There are still countless challenges presented by mental health problems and associated stigmas.
The engineering challenges presented by crossing passes higher than the Matterhorn were extreme.
There are other challenges presented by this way of interacting with networked information.
But is he, or his company, up to the challenges presented by China?
Lastly we will discuss unsolved problems including the current machine learning challenges presented by these projects.
The challenges presented by the global climate crisis and the opportunities presented by a new green economy demand action.
Beyond the special challenges presented by their sometimes hopping diets, reptiles frequently require high temperatures and humidity levels to thrive.
In the main, we consider that our various transport networks rose to the challenges presented by last winter's weather well.
To those concerns must be added the failure of the Conservatives to address the particular challenges presented by Northern Ireland.
For him, it is to be entangled with the physical challenges presented by the world as it is.
