MODERN INVENTIONS
1. Genetic engineering. Genetic engineering is a new branch of molecular biology and genetics. Scientists use the methods of genetic engineering to modify the structure of genes or to create hybrid genes. Genetically improved species of crops and modern medicines are among the most remarkable achievements of genetic engineering.
2. Alternative sources of energy. Energy is vital for human survival. Nowadays, most of the energy is generated by burning oil and natural gas, or using nuclear power. All these sources are potentially dangerous for the environment. Alternative sources of energy or "green energy" are more environmentally friendly. We can use hydropower energy, wind energy, geothermal energy, solar energy and even tidal energy. They are renewable, environmentally friendly, and efficient.
3. Artificial intelligence. Artificial intelligence is being developed to establish links between humans and technologies. In today's world, robots, toys and computers meet human needs. They are equipped with artificial intelligence ho help people.
4. Robotics. Robotics is a relevantly new branch of science. We are entering a new technologically advanced era. In the future, robots will be used everywhere: from delivering products to cleaning the house. Currently, robots are being used in manufacturing and defense services, for intelligence and security measures. The difference between robots and humans is blurring at a rapid pace, as robots continue to develop and improve.
5. Hypersonic transport. Scientists spend a lot of effort and energy to increase the effectiveness of transportation systems. Researchers have developed technologies that provide the least time consumption with a greater productivity. Hypersonic transport made it possible to cover long distances at an unimaginable pace. These vehicles are capable of covering long distances at a speed 4 times faster than sound.
6. Hydrogen Vehicles. Cars powered by hydrogen fuel are one of the most important inventions of the 19th century contributing to the fight against the global warming. Hydrogen vehicles do not consume fossil fuel, and they are more ecologically friendly than ordinary cars. These cars run on the fuel generated by renewable resources and emit only water vapor. The invention is expected to dramatically reduce the burning of fossil fuels in the world.
Choose the statement which best expresses the main idea of the passage: