Do animals need sunlight? Animals don’t need energy from the sun, not directly anyway. Animals get energy from the food they eat. However, that food either got its energy by eating other food, or by photosynthesis, and sooner or later almost all energy on Earth comes from the sun. Which animal live in both land […]
What is the sequence of vessels that blood travels as it leaves the heart?
What is the sequence of vessels that blood travels as it leaves the heart? Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. Blood leaves the heart through the aortic valve, into the aorta and to the body. This pattern is repeated, causing blood to flow continuously to […]
Which surface is the best radiator of heat?
Which surface is the best radiator of heat? Green colored surface is good radiator. As we know, Good absorber is good raditor, so here green color is good absorber of heat as compare to silver color. Why heat conduction is a slow process? Energy from the sun comes to us by radiation. Heat transfer through […]
What are the elements of Pantheon?
What are the elements of Pantheon? Designed by an architect unknown in 120 C.E., the Pantheon is composed of three components: a colonnaded pronaos (entrance portico) – facing north – that reminisces the front of a customary Greek temple, an intermediate junction connecting it to the last element, and the close domed rotunda with an […]
Is wave energy better than tidal energy?
Is wave energy better than tidal energy? The potential of both wave and tidal energy is enormous. More reliable than many of their renewable energy counterparts, wave and tidal energy are more efficient and have longer lifespans. Waves are produced by winds blowing across the surface of the ocean. What type of energy is Tides? […]
What is the best material for aircraft composite construction?
What is the best material for aircraft composite construction? Many types of reinforcement materials are available for aircraft use. Three types are used most often to build custom aircraft. These are fiberglass, carbon fiber, and Kevlar. Glass fiber or fiberglass is the most widely used reinforcing material. Which are some of the disadvantages of using […]
Which pair of molecules has the strongest?
Which pair of molecules has the strongest? Answer. pair has two highly polar molecules that are even able to form hydrogen bonds with each other which is an extreme case of dipole-dipole forces. pair has the strongest dipole-dipole interactions. Which molecule has the strongest dipole moment? NaCl Which halide has the smallest dipole moment? CHCl3 […]
Is activation energy positive or negative?
Is activation energy positive or negative? Although the energy changes that result from a reaction can be positive, negative, or even zero, in all cases an energy barrier must be overcome before a reaction can occur. This means that the activation energy is always positive. What is the relation between rate constant and activation energy? […]
What is the organ that regulates body temperature?
What is the organ that regulates body temperature? Our internal body temperature is regulated by a part of our brain called the hypothalamus. The hypothalamus checks our current temperature and compares it with the normal temperature of about 37°C. If our temperature is too low, the hypothalamus makes sure that the body generates and maintains […]
Which sea has lowest salinity?
Which sea has lowest salinity? The Arctic Ocean’s What is salinity of ocean water? about 35 parts per thousand What ocean has the highest salinity? Atlantic Ocean What Happens When ocean salinity drops? Changes in salinity could also affect water currents because saltwater is denser than fresh water and sinks. Warmer air can absorb more […]