What are some ways to reduce acid deposition? Why is it difficult to implement these solutions?
What will be an ideal response?
According to most scientific experts on acid deposition, the best solutions are preventive approaches that reduce or eliminate emissions of sulfur dioxide, nitrogen oxides, and particulates. Although we know how to prevent acid deposition, implementing these solutions is politically difficult. One problem is that the people and ecosystems it affects often are quite far downwind from the sources of the problem. Also, countries with large supplies of coal (such as China, India, Russia, and the United States) have a strong incentive to use it. In addition, owners of coal-burning power plants resist adding the latest pollution control equipment to their facilities, using low sulfur coal, and removing sulfur from coal before burning it, arguing that these measures would increase the cost of electricity for consumers.
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New genetic traits upon which natural selection can act usually arise from ________
A) the need to become adapted to a new environment B) mutations C) the demands of the environment D) increases in cell size and shape
Based on the march of the seasons, which of the following is true of Quito, Ecuador (0° 15' N, 78° 35' W)?
A) Quito experiences the subsolar point twice daily. B) Quito experiences days and nights of equal lengths throughout the year. C) At noon on June 21st, the sun is directly overhead in Quito. D) Quito is at a latitude that is never the subsolar point. E) During the June Solstice, Quito experiences 24 hours of darkness because it is completely outside of the circle of illumination.
The islands of Hawaii have had tremendous problems with habitat destruction and introduced species on their islands. So much so, that they have come to be known as "the extinction capital of the world" among biologists and ecologists
Indicate whether the statement is true or false
________ are objects from which light cannot escape because of the immense gravitational pull at its surface. They are produced during supernova events.
A) Neutron stars B) Black holes C) Black dwarves D) White dwarves