How Many Years Did It Take for the Population to Go

question 25

Multiple Choice

How many years did it take for the population to go from 1 billion to 7 billion? ​

• A)100
• B)200
• C)1,000
• D)10,000
• E)1,000,000

Identify and apply markups and markdowns in financial contexts.

Calculate original amounts before percentage increases or decreases.

Understand and perform calculations involving interest rates and commissions.

Determine cost price, selling price, and profit margins.

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Definitions:

Growth Retardation

A slower than normal rate of growth in infants, children, or adolescents, which can be due to various health conditions or nutritional deficits.

Smoked During Pregnancy

The act of tobacco smoking by a pregnant woman, which poses serious health risks to the fetus, including premature birth and low birth weight.

PKU

A genetic disorder known as Phenylketonuria, characterized by the body's inability to break down the amino acid phenylalanine.

Cord Blood

Blood that remains in the placenta and attached umbilical cord after childbirth, rich in blood-forming stem cells and used in medical treatments.