IELTS Reading Practice | The Sharing Economy | The Natural World
Reading for IELTS Practice | Question Type: Multiple Choice
Topic | The Natural World
The process of photosynthesis in plants is a complex one that involves several key steps. The first step is the absorption of light energy by pigments in the chloroplasts of plant cells. This energy is then used to split water molecules into oxygen and hydrogen, a process known as photolysis. The hydrogen ions are used to power the production of ATP, a molecule that provides energy for the plant's metabolic processes. The oxygen is released as a byproduct of the process.
- Photosynthesis: the process by which green plants and some other organisms use sunlight to synthesize foods, such as glucose, from carbon dioxide and water.
- Pigments: a substance that imparts color to plants, animals, and other organisms.
- Chloroplasts: organelles within plant cells that contain chlorophyll, the pigment that captures light energy to power photosynthesis.
- Photolysis: the process of splitting water into oxygen and hydrogen using light energy.
- ATP: Adenosine triphosphate, a molecule that provides energy for metabolic processes in all living cells.
- Oxygen: a colorless, odorless, tasteless gas that makes up about 21% of the Earth's atmosphere.
- Hydrogen: a chemical element with the symbol H and atomic number 1. It is the lightest and most abundant element in the universe.
- Metabolic processes: the chemical reactions that occur within a living organism to maintain life.
- Byproduct: a product made during the production of another product.
Explanation: The paragraph states that "one of the benefits of the sharing economy is that it can help to reduce waste and increase efficiency." However, it also states that it raises concerns about issues like safety and regulation, implying that there could be negative effects as well. Therefore, the statement that the sharing economy can only be beneficial to the environment, with no negative effects, is false.