Sentence examples for and constitute a major from inspiring English sources

Trace metals cause deterioration of the soil and constitute a major concern for the environment and human health.

They are a valuable raw material for tile, brick, and pottery and constitute a major source of alumina for Portland cement.

For example, there is medical evidence that early high school starts are impacting the development of an entire generation of students and constitute a major public health crisis.

The system improvements described in this study enabled continuous operation in the harsh bridge environment for 13 months starting April 30 , 2012and constitute a major milestone in the development of miniaturized motion harvesters.

"The E.U.'s position on settlements is clear: All settlement activities in Gaza, the West Bank including East Jerusalem and on the Golan Heights are illegal under international law and constitute a major obstacle to peace," said Christopher Patten, the European Union's external relations commissioner, in a speech to the European Parliament last week heralding the policy change.

When severe symptoms are refractory and constitute a major disability, surgical treatment should be considered.

INTRODUCTION: Obstructive sleep apnea (OSA) is highly prevalent and constitutes a major health hazard.

Dengue is a serious emerging infectious disease and constitutes a major international health concern.

It is the most variable characteristic of the atmosphere and constitutes a major factor in climate and weather.

Clifton is situated in a heavily industrialized area and constitutes a major segment of the Bergen-Passaic metropolitan statistical area.

The calcareous test, or shell, of the foraminiferans is preservable and constitutes a major component of limestone rocks.