Are there sharks in the Yellow Sea? There are about 110 shark species found in China’s seas of which 27 are found in the Yellow and Bohai Seas, 80 in the East China Sea and 94 in the South China Sea. What animals live in the Yellow Sea? The prominent among them include Jellyfish, flounder, […]
What are four alternative sources of energy?
What are four alternative sources of energy? The most popular renewable energy sources currently are: Solar energy. Wind energy. Hydro energy. Tidal energy. Geothermal energy. Biomass energy. Why do we need an alternative energy source? Environmental and economic benefits of using renewable energy include: Generating energy that produces no greenhouse gas emissions from fossil fuels […]
How do organisms defend themselves?
How do organisms defend themselves? Many plants have impenetrable barriers, such as bark and waxy cuticles, or adaptations, such as thorns and spines, to protect them from pathogens. Plants produce antimicrobial chemicals, antimicrobial proteins, and antimicrobial enzymes that are able to fight the pathogens. What protect the plant from being eaten by animals? Use ready […]
Is snow solid water?
Is snow solid water? Snow, by a simple definition, is a group of loosely connected ice crystals; ice is the solid form of water. It is more than just frozen rain, which would be called sleet, because water vapor turns directly into ice, totally skipping the liquid phase. What is solid snow called? Perennial snow […]
How is heat transferred to Earth?
How is heat transferred to Earth? Energy is transferred between the Earth’s surface and the atmosphere in a variety of ways, including radiation, conduction, and convection. Conduction is one of the three main ways that heat energy moves from place to place. The other two ways heat moves around are radiation and convection. Which is […]
What is variety in principles of training?
What is variety in principles of training? The principle of variety is ensuring training sessions use multiple training types and methods, as well as exercises within these methods. Variety is needed in training, not only to prevent boredom, but also to ensure complete and full development of fitness. What is variety principle? Variety is the […]
How do kidneys maintain pH balance?
How do kidneys maintain pH balance? The kidneys have two main ways to maintain acid-base balance – their cells reabsorb bicarbonate HCO3− from the urine back to the blood and they secrete hydrogen H+ ions into the urine. By adjusting the amounts reabsorbed and secreted, they balance the bloodstream’s pH. What organ is most critical […]
What boat hull can hold the most weight?
What are the disadvantages of cobalt 60?
What are the disadvantages of cobalt 60? Because it decays by gamma radiation, external exposure to large sources of Co-60 can cause skin burns, acute radiation sickness, or death. What radiation does cobalt 60 emits? gamma rays How can you protect yourself from cobalt 60? Cobalt-60 must be stored in a position well shielded by […]
How do you find the greatest displacement?
How do you find the greatest displacement? Displacement can be calculated by measuring the final distance away from a point, and then subtracting the initial distance. Displacement is key when determining velocity (which is also a vector). Velocity = displacement/time whereas speed is distance/time. What is the maximum displacement between two points? Answer: The maximum […]