Answer:
Some organs are both a source and sink. Leaves are sinks when growing and sources when photosynthesizing. Rhizomes are sinks when growing but become sources in the spring when they provide energy for new growth.
Radi Carry developed a theory named "<span>Spontaneous generation". This theory assumed that living creatures can be generated from non-living things and he used this theory in order to explain the origin of flies.
He carried out another experiment with three jars to check that bad air did not cause any flies.</span>
School is an example like you have a load of work and its hard and u keep going cuz u know it will get you someone good adn another is running a marothon even though its hard you just keep going. hope this helps and please rate below :)
Marble and slate are examples of impermeable rocks.
If a solution process is exothermic, the energy required for dissolving the solute compare with the energy released is that, the energy requiredis less than the energy released. When we sayexothermic, heat is evolved. On the other hand,when heat is absorbed, this is called endothermic.
