Reference no: EM133373206
Questions
1. Which statement describes the neutralizing effect of limestone bedrock when exposed to acid rain?
A Carbonic acid dissolves calcium carbonate within limestone, forming salts.
B Carbonic acid reacts with calcium carbonate, increasing the pH of lakes and ponds.
C Carbonic acid reacts with calcium carbonate to reform carbon dioxide gas.
D Carbonic acid increases the pH of ocean waters and neutralizes calcium carbonate.
2. Which of the following substances combine with water in the atmosphere to make nitric acid?
A Nitrous acid
B Nitrogen gas
C Nitrogen oxide
D Nitrogen dioxide
3. Scientists want to investigate the effects of chronic acidification on a desert ecosystem. Which independent variable are the scientists most likely monitoring in their investigation?
A The amount of fog during different times of the year
B The composition and amount of seasonal melt water
C The daily production of sulfur dioxide by a nearby factory
D The heaviest traffic periods of the year
4. An ecologist suspects that an otherwise healthy lake ecosystem experienced an high level of acid deposition during a stormy autumn, due to the emissions from motor vehicles traveling on a nearby highway. Which of the following should the ecologist measure to help confirm her hypothesis?
A The daily production of sulfur dioxide from motor vehicles
B The amount of sulfur trioxide released by nearby vehicles
C The amount of NO2 in the air near the lake and highway
D The pH of rainwater for each month of the year
5. Which of the following problems are environmental indicators of acid deposition?
Decreased pH levels in lakes and rivers
Increased concentration of sulfates and nitrates in the soil
Changes in population size of indicator organisms of an ecosystem
A II only
B III only
C I and II
D I, II, and III
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