Answer:
Many fish have an outer covering of scales. Scales protect fish, much like a suit of armor. All fish have a slimy covering of mucus. This substance allows the fish to swim through the water with very little drag and also makes it difficult for other organism to attach to the fish.
Explanation:
On April 26, 1986<span>, a sudden surge of power during a reactor systems test destroyed Unit 4 of the </span>nuclear<span> power station at </span>Chernobyl,Ukraine<span>, in the former Soviet Union. The </span>accident<span> and the fire that followed released massive amounts of radioactive material into the environmen hopee i helped</span>
Answer:
Most liquid fuels in widespread use are derived from fossil fuels; however, there are several types, such as hydrogen fuel (for automotive uses), ethanol, and biodiesel, which are also categorized as a liquid fuel. Many liquid fuels play a primary role in transportation and the economy.
