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The number of times the heart beats per minute is called heart rate. For a normal adult human it is about 72 times per minute. For infants, it is a higher figure. It also goes up during physical exercise. The contractions and relaxations that the heart chambers undergo are felt all along ..

Also called as mortality rate, it is the rate at which people die. It is also expressed as number of deaths occurring for every 1000 people per year. It gives an idea of reduction in population due to death. It negatively contributes to growth rate. It also indicates ..

Rate of reaction Concentration, temperature, and pressure - their effect on reaction rates Role a catalyst in reaction rates Definition and role of activation energy in a chemical reactio..

Birth rate usually expressed as number of birth for every 1000 people ()..

Rate of a reaction is defined as the speed at which the reactants are converted into product..

Temperature and heat flow in terms of the motion of molecules (or atoms) Rate of reaction Concentration, temperature, and pressure - their effect on reaction rates Role a catalyst in reaction rates Definition and role of activation energy in a chemical reactio..

Rate of a Reaction - Rate of reaction basically means the speed at which a chemical reaction occurs. The speed of a reaction is determined by monitoring the concentrations of the reactants or products at intervals of time. The volume of the reaction vessel is kept constant and t..

The rate of transpiration is affected by many factors such as light, temperature, availability of soil water and atmospheric humidity. The plants also show adaptations to reduce transpiration and thereby reduce water loss. For example: Desert plants may not have leaves (stem has photosynt..

The rate of transpiration is affected by many factors such as light, temperature, availability of soil water and atmospheric humidity. The plants also show adaptations to reduce transpiration and thereby reduce water loss. For example: Desert plants may not have leaves (stem has photosynt..

It is the rate at which population grows. It is expressed as number of births occurring for every 1000 people per year. It is the most important parameter deciding population growth, as it indicates how many new children are added every year to existing population. It also gives an idea ..