In 2015, for example, scientists said that an ongoing drought in Californiaâthe stateâs worst water shortage in 1,200 yearsâhad been intensified by 15 percent to 20 percent by global warming. They also said the odds of similar droughts happening in the future had roughly doubled over the past century.
Definition: Birth rate is the demographic measure of the rate at which children are born. The most well known is the crude birth rate, which is the number of births that occur each year per 1,000 people in the midyear population. It is called âcrudeâ because it does not take into account the possible effects of age structure.
Equally 120 may be tachycardia for most of us but it is a normal rate for babies. Arrhythmia is a term used to describe any abnormal heart rate. A tachyarrhythmia is an abnormally fast heart rate that typically is not regular or predictable. Normal resting heart rate is said to be between 60 and 100 beats per minute.