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\begin{tabular}{|c|c|c|c|c|}
\cline{2-5} \multicolumn{1}{c|}{} & Russia & Brazil & Nigeria & \begin{tabular}{c}
Global \\
avg.
\end{tabular} \\
\hline \begin{tabular}{c}
Population \\
growth rate
\end{tabular} & [tex]$-0.02 \%$[/tex] & [tex]$0.83 \%$[/tex] & [tex]$2.54 \%$[/tex] & [tex]$1.10 \%$[/tex] \\
\hline Fertility rate & 1.61 & 1.81 & 5.31 & 2.45 \\
\hline \begin{tabular}{c}
Life \\
expectancy
\end{tabular} & 70 years & 73 years & 52 years & 68 years \\
\hline
\end{tabular}

Which country is growing the fastest? [tex]$\square$[/tex]

Which country is growing the slowest? [tex]$\square$[/tex]

Which factor most likely contributes to Brazil's population growth rate? [tex]$\square$[/tex]

Which factor most likely contributes to Nigeria's population growth rate? [tex]$\square$[/tex]



Answer :

GinnyAnswer
### Solution:

#### 1. Fastest Growing Country:

We need to determine which country has the highest population growth rate.

Given Population Growth Rates:
- Russia: -0.02%
- Brazil: 0.83%
- Nigeria: 2.54%
- Global avg.: 1.10%

Comparing these values, the country with the highest population growth rate is:
- Nigeria with 2.54%

Answer: Nigeria

#### 2. Slowest Growing Country:

Next, we determine which country has the lowest (or most negative) population growth rate.

Given Population Growth Rates:
- Russia: -0.02%
- Brazil: 0.83%
- Nigeria: 2.54%
- Global avg.: 1.10%

Upon inspection, the country with the lowest growth rate is:
- Russia with -0.02%

Answer: Russia

#### 3. Main Factor Contributing to Brazil's Population Growth:

We need to identify the contributing factor to Brazil's population growth. We can compare fertility rates and life expectancies:

Given Fertility Rates:
- Russia: 1.61
- Brazil: 1.81
- Nigeria: 5.31
- Global avg.: 2.45

Given Life Expectancies:
- Russia: 70 years
- Brazil: 73 years
- Nigeria: 52 years
- Global avg.: 68 years

Brazil's fertility rate (1.81) is higher than Russia's (1.61), and its life expectancy (73 years) is also higher than Russia’s (70 years). However, the greater difference in fertility rate plays a critical role. Therefore, the factor most likely contributing to Brazil's population growth is the:
- Fertility rate

Answer: Fertility rate

#### 4. Main Factor Contributing to Nigeria's Population Growth:

Finally, we look at the contributing factor to Nigeria's population growth rate.

Given Fertility Rates:
- Russia: 1.61
- Brazil: 1.81
- Nigeria: 5.31
- Global avg.: 2.45

Given Life Expectancies:
- Russia: 70 years
- Brazil: 73 years
- Nigeria: 52 years
- Global avg.: 68 years

Nigeria’s fertility rate (5.31) is much higher than Russia's (1.61), and while its life expectancy (52 years) is lower than Russia's (70 years), the significantly higher fertility rate is the major contributing factor. Therefore, the factor most likely contributing to Nigeria's population growth is the:
- Fertility rate

Answer: Fertility rate