What is meant by solution which has high concentration of water ?

What are the four basic classes of organic molecules how do they differ structurally and functionally

Which member of the following food chain will be least affected by ddt, a pesticide water pollutant, if bio-magnification is occurring? algae> zooplankton> crayfish> leopard frog> large mouth bass

Which type of landform forms at the plate boundary as a result of divergent stress