Apes 7, 8,9In addition to volatile organic compounds (VOCs), which of the following components must be present in the atmosphere to create photochemical smog?

In addition to volatile organic compounds (VOCs), which of the following components must be present in the atmosphere to create photochemical smog?

NOx and UV light

Which of the following correctly pairs a greenhouse gas with its primary anthropogenic source?

Nitrous oxide and agricultural practices

Which chemical compound can cause algal blooms and cultural eutrophication in streams?

Nitrates (NO3-)

Which of the following solutions can best produce an anthropogenic cause of ocean acidification?

Switch from coal-burning power plants to nuclear power plants for electricity generation

Which of the following describes a potential human health effect most likely to be associated with a thermal inversion?

Increase in respiratory irritation due to increased levels of fine airborne particulates

Increased use of which of the following technologies would cause the greatest reduction in the primary source of photochemical smog?

Catalytic converters

Which of the following is most likely the source of the radon found in a house?

Radon gas found in bedrock and soil leaked into the home through cracks in the foundation.

Which of the following is a human health impact associated with exposure to radon gas inside homes or other buildings?

Increase incidence of lung cancer

The graphs below show inputs of several different pollutants into the Chesapeake Bay from four major river systems.Which of the following strategies will best reduce eutrophication in the Chesapeake Bay?

Regulating the use of inorganic fertilizer in the Susquehanna River watershedRegulating the use of inorganic fertilizer in the Susquehanna River watershed

Students conducted an experiment to calculate the LDso of Chemical X on seedlings. They grew separate groups of seedlings in a range of doses of Chemical X. After several days they calculated the percent mortality at each dose and graphed the results. Which of the graphs correctly shows how to determine the LDs. of Chemical X on the seedlings?

straight and then down dotted line that intersects the graph

This pathogen is primarily transmitted by mosquitos and is found most often in sub-Saharan Africa.

Malaria

Major anthropogenic sources of nitrogen pollution include commercial fertilizers, vehicle exhaust, industrial air pollution, and…

Discharge of Sewage to surface waters?

Many homeowners are unaware that their garbage may contain hazardous waste, which should be taken to a designated hazardous waste dump site instead of being placed in their regular trash. All of the following are considered household hazardous waste EXCEPT

Food scraps

Which of the following would most likely neutralize the effect of acid rain on bodies of water, based on the composition of soils and bedrock in the region?

A forest underlain by limestone

Cane toads are an invasive species that were introduced to Australian ecosystems. Researchers studying can toads hypothesize that cane toads are negatively affecting native species. The researchers observed different locations with and without cane toads and collected the data that are presented in the following graph. Which of the following best interprets the results in the graph in relation to the given hypothesis?

The results support the researchers' hypothesis because there is a greater biodiversity at sites without cane toads.

Water vapor is a greenhouse gas and is produced by burning fossil fuels. However, anthropogenic  water vapor does not contribute significantly to global warming because Water vapor…

Has a short residence time in the atmosphere

This pathogen infects the intestine and is spread through contaminated water or food.

Cholera

Which of the following statements best describes photochemical smog in large cities in the United States?

Photochemical smog causes negative human health impacts such as eye and lung irritation.

An ecologist examining several different ponds discovers that in one pond all the frogs are female. Which of the following is most likely led to the all-female population of frogs?

An endocrine disruptor

The spread of infectious diseases is expected to increase with climate change, mainly because…

Warmer temperatures allow disease carrying insects to survive in areas that were once too cold

The diagram illustrates a sewage treatment plant. The different processes at the plant are labeled A to D.This process uses chlorine, ultraviolet radiation, or ozone as part of the disinfection of wastewater.

D

Large objects, such as sticks and rocks, are screened out and removed during this process.

A

In August of 2014, residents of several Ohio cities that use Lake Erie as a drinking water source were warned not to drink tap water because of the presence of toxins released by blue-green algae (cyanobacteria). Which of the following is the most likely cause of recent blooms of blue-green algae in Lake Erie?

Phosphorus contained in agricultural runoff

Eutrophication results in the death of trout and other fish as a result of…

asphyxiation from lack of oxygen

The table below shows the oral LD50 values for various household substances.Based on the LD50 values, which of the following best describes the toxicity level of the household substances shown in the table?

Antifreeze is more toxic than aspirin.