What are ecosystems? who are ecosystem ecologists what is their field of study

Which of the following is a way that advancements in technology improve humans' ability to measure air quality and protect human health?

The ratio of the measures of the three angles in a triangle is 14: 15: 11 find the measures of the angles

If we review the changes in the landscape surrounding the great salt lake in utah we can see a change in topography. look at the area to the south of the lake. what change has occurred during the last twenty-nine years? a) erosion of the hills b) an increase in marshland c) flooding of the area and the development of wetlands d) deposition of sediments and an increase in elevation