Smoke, fumes, ash, dust, nitric oxide and sulphur dioxide are the main sources of ________.

Which of the following diseases are caused by smog?

The major photochemical smog is________.

Which of the following statements is true about SMOG?

Which of the following particles is called the particulate pollutants?

The amount of flowing dirt in the water is

Temperature, turbidity, and suspended sediment are all

Macroinvertebrates such as stoneflies, mayflies and water boatmen require high levels of dissolved oxygen and their abundance is an indication of:

A measure of how suitable water may be for drinking

What two agriculture nutrients cause the greatest problems in surface waters? (lead to algae growth and depleted O2)

Soil quality is generally enhanced by greater __________.

Which of the following indicators of soil quality would be useful changes due to soil management over periods of just a few years?

Food production, carbon sequestration, water supply, disease mitigation, and habitat for diverse organisms are all examples of ________________.

Which of the following are positive effects brought about by intensification of agroecosystems?

Which statement(s) best characterize(s) shifting cultivation systems in use today?