What problem has China tried to solve by building hydropower dams, such as the Three Gorges Dam?
A) scarcity of water
B) lack of arable land
C) production of greenhouse gases
D) damage from earthquakes and tsunamis
A) scarcity of water
The correct answer is C) production of greenhouse gases.
China has constructed hydropower dams, such as the Three Gorges Dam, to address its high demand for electricity while attempting to reduce its reliance on fossil fuels. The construction of these dams aims to generate renewable energy and reduce the production of greenhouse gases associated with burning coal and other fossil fuels.
The correct answer is C) production of greenhouse gases.
China has built hydropower dams, like the Three Gorges Dam, in order to address the problem of greenhouse gas emissions. Here's how you can arrive at this answer:
1. Understand the purpose of hydropower dams: Hydropower dams are built to generate electricity by harnessing the energy from flowing or falling water. This renewable energy source helps reduce reliance on fossil fuels, thus mitigating the emission of greenhouse gases.
2. Evaluate the options:
- A) Scarcity of water: While hydropower dams can help regulate water flow and provide water for various purposes, like irrigation, they are not primarily built to solve water scarcity issues.
- B) Lack of arable land: Hydropower dams do not directly address the problem of inadequate arable land.
- C) Production of greenhouse gases: This option accurately describes the problem that China aims to solve by building hydropower dams. By generating electricity from water instead of fossil fuels, the dams contribute to the reduction of greenhouse gas emissions.
- D) Damage from earthquakes and tsunamis: While some dams may play a role in mitigating the impact of natural disasters like tsunamis, they are not built primarily for the purpose of addressing earthquake or tsunami damage.
Therefore, the correct answer is C) production of greenhouse gases.