In our circulatory system, blood transports blood cells and dissolved ions when it moves through the body. which of the following terms is suitable for blood?
fossil fuels are the fuels that are excavated from the deep layers of the earth. these fuels are produce deep layers of earth after millions of years of geological process. these includes coal, petroleum and natural gas. they are the rich source of carbon. when these fuels are burned they liberate carbon dioxide gas. this gas is responsible for increasing the temperature of the atmosphere. hence, is responsible for the phenomena of global warming.
velocity can vary as long there is specific direction (displacement)
speed has no direction therefore change in speed is not necessary the
velocity is also in a specified direction
that the one with natrual sunlight is healthier than the other one