Review energy resources

Fossil fuels are formed from the remains of organisms from millions of years ago. Which of the following is not an example of a fossil fuel?.

• biomass

• coal

• natural gas

• petroleum

Los combustibles fósiles se forman a partir de los restos de organismos de hace millones de años. ¿Cuál de los siguientes no es un ejemplo de un combustible fósil?

• biomass

• coal

• natural gas

• petroleum

Many areas still rely on coal as the main source of energy for everyday use. Which of the following is a valid argument for using solar energy instead of coal?

• Coal has a limited supply.

• Coal produces more energy.

• Coal is less expensive to use.

• Coal produces less pollution.

Muchas áreas todavía dependen del carbón como la principal fuente de energía para el uso diario. ¿Cuál de los siguientes es un argumento válido para usar energía solar en lugar de carbón?

• Coal has a limited supply.

• Coal produces more energy.

• Coal is less expensive to use.

• Coal produces less pollution.

Hydroelectric power is considered renewable; however, there are some limitations to renewable resources. Which of the following would limit the ability to use hydroelectric power in an area?

1. Unlimited funding for a dam.

2. The absence of a river in the area.

3. A change in precipitation patterns.

• 1 and 2

• 1 and 3

• 2 and 3

• all of them

La energía droeléctrica se considera renovable; Sin embargo, existen algunas limitaciones a los recursos renovables. ¿Cuál de las siguientes opciones limitaría la capacidad de utilizar la energía hidroeléctrica en un área?

1. Financiación ilimitada para una presa.

2. La ausencia de un río en la zona.

3. Un cambio en los patrones de precipitación.

• 1 and 2

• 1 and 3

• 2 and 3

• all of them

One of the main concerns with using fossil fuels is that they produce carbon dioxide when burned. Which of the following is not a consequence of burning fossil fuels and releasing carbon dioxide on the environment?

• an increase in carbon dioxide can lead to global warming

• an increase in carbon dioxide can lead to ice caps melting

• an increase in carbon dioxide can lead to ocean acidification

• an increase in carbon dioxide can lead to lower levels of photosynthesis

Una de las principales preocupaciones con el uso de combustibles fósiles es que producen dióxido de carbono cuando se queman. ¿Cuál de los siguientes no es consecuencia de la quema de combustibles fósiles y la liberación de dióxido de carbono en el medio ambiente?

• an increase in carbon dioxide can lead to global warming

• an increase in carbon dioxide can lead to ice caps melting

• an increase in carbon dioxide can lead to ocean acidification

• an increase in carbon dioxide can lead to lower levels of photosynthesis

Wind turbines are used to produce wind power. As the wind blows, it spins a propeller-like structure which generates energy. Some environmentalists are concerned that these wind turbines can cause an environmental hazard to organisms. Which of the following is a valid concern of wind turbines on organisms?

• The wind turbines are noisy and cause irritation to nearby organisms.

• Migratory birds may fly into the turbines which can cause them to die.

• Decomposition would decrease in the areas where turbines are present.

• The wind turbines produce less energy than other renewable resources.

Las turbinas eólicas se utilizan para producir energía eólica. A medida que sopla el viento, gira una estructura similar a una hélice que genera energía. A algunos ambientalistas les preocupa que estas turbinas eólicas puedan causar un peligro ambiental para los organismos. ¿Cuál de las siguientes es una preocupación válida de las turbinas eólicas en los organismos?

• The wind turbines are noisy and cause irritation to nearby organisms.

• Migratory birds may fly into the turbines which can cause them to die.

• Decomposition would decrease in the areas where turbines are present.

• The wind turbines produce less energy than other renewable resources.