Question

1 which of the following would decrease the t factor in the ipat model? a pollution control technology b wind power c fuel - efficient cars d coal - burning power plants e solar energy 2 which of the following qualifies a point source pollution? a a sewer pipe dumping raw sewage into a stream b fertilizer runoff from agricultural fields c exhaust from vehicles in a county d solid waste from consumers in a city 3 a positive feedback loop __ a converts additional low - quality energy to kinetic energy b creates positive ions by stripping electrons from atoms c causes a system to change in the opposite direction from which it is moving d causes a system to change further in the same direction in which it is moving e is a feedback with beneficial results 4 which equation best represents npp, or net primary productivity? a sun’s energy+chemical energy+cellular respiration b (sun’s energy→chemical energy)−cellular respiration c (sun’s energy→chemical energy)+cellular respiration d sun’s energy−(chemical energy−cellular respiration) e sun’s energy−chemical energy+cellular respiration 5 humans are altering the carbon cycle by __ a killing off large numbers of animals, which reduces the amount of carbon in the system b growing crops, which increases the amount of carbon in the system c increasing their population, which reduces carbon dioxide from the atmosphere d burning fossil fuels, which adds carbon dioxide to the atmosphere e extracting fossil fuels from the ground, which removes carbon from the system

Explanation:

1. En el modelo IPAT, T es el impacto ambiental por unidad de consumo. La tecnología de control de contaminación reduce este impacto por unidad, disminuyendo T.
2. La contaminación puntual proviene de una fuente única identificable; un tubo de alcantarillado es un ejemplo claro.
3. Un bucle de retroalimentación positiva amplifica el cambio del sistema en la misma dirección.
4. La productividad primaria neta (NPP) es la energía química producida (GPP) menos la respiración celular.
5. La quema de combustibles fósiles libera dióxido de carbono a la atmósfera, alterando el ciclo del carbono.

Answer:

1. A. pollution control technology
2. A. a sewer pipe dumping raw sewage into a stream
3. D. causes a system to change further in the same direction in which it is moving
4. B. (sun’s energy → chemical energy) – cellular respiration
5. D. burning fossil fuels, which adds carbon dioxide to the atmosphere