Pollution is the introduction of contaminants into the natural
environment that cause adverse change. Pollution can take the form of
chemical substances or energy, such as noise, heat or light. Pollutants,
the components of pollution, can be either foreign substances/energies
or naturally occurring contaminants. Pollution is often classed as point
source or nonpoint source pollution.
Hope this helps :p
The answer is b because the global warming only gets caused by the decrease of in consumer spending .
Keeping constant the number of chromosomes of the species and perform a summary of recombination, through crossing-over
( Swapping – increases the <span>genetic variability )</span>
hope this helps!
Hello!
A half-life is the amount of time it takes half of an element to decay. For example, after one of carbon's half-life, half of carbon would've decayed.
Now, we can calculate how much has decayed if 5 half lives have passed.
1 -> 50% (1) -> 25% (2) -> 12.5% (3) -> 6.25% (4) -> 3.125% (5)
Therefore, there would be 3.125% left of iodine. However, your question is asking what percent has decayed. Therefore, subtract 3.125 from 100% to get your final answer.
100 - 3.125 = 96.875
Therefore, your final answer is 96.875% of iodine has decayed if 5 half lives have passed.
Hope this helps!
