Select the correct answer.

This table shows data collected by a weather station. If these trends continue, what weather can you predict for the region for the upcoming week?

\begin{tabular}{|c|c|c|c|}
\hline & Day 1 & Day 2 & Day 3 \\
\hline \begin{tabular}{c}
temperature, upper atmosphere \\
( [tex]$\left.{ }^{\circ} F \right)$[/tex]
\end{tabular} & 45 & 44 & 43 \\
\hline \begin{tabular}{c}
temperature, surface \\
( [tex]$\left.{ }^{\circ} F \right)$[/tex]
\end{tabular} & 61 & 59 & 55 \\
\hline \begin{tabular}{c}
air pressure \\
(inches of mercury)
\end{tabular} & 30.00 & 29.96 & 29.50 \\
\hline
\end{tabular}

A. cloudless skies, warm weather
B. a blizzard
C. rain storms
D. a few clouds, but very cold



Answer :

To determine the predicted weather conditions for the upcoming week based on the data provided, we need to analyze the trends in temperature and air pressure over the three days shown in the table.

### Step-by-Step Analysis:

1. Upper Atmosphere Temperature Trend:
- Day 1: 45°F
- Day 2: 44°F
- Day 3: 43°F

We note that the temperature in the upper atmosphere is:

- From Day 1 to Day 3: [tex]\( 43°F - 45°F = -2°F \)[/tex]

This indicates a drop of 2°F over the three days.

2. Surface Temperature Trend:
- Day 1: 61°F
- Day 2: 59°F
- Day 3: 55°F

We note that the surface temperature is:

- From Day 1 to Day 3: [tex]\( 55°F - 61°F = -6°F \)[/tex]

This indicates a drop of 6°F over the three days.

3. Air Pressure Trend:
- Day 1: 30.00 inches of mercury
- Day 2: 29.96 inches of mercury
- Day 3: 29.50 inches of mercury

We note that the air pressure is:

- From Day 1 to Day 3: [tex]\( 29.50 - 30.00 = -0.50 \)[/tex] inches

This indicates a drop of 0.50 inches of mercury over the three days.

### Interpretation of Trends:

Since both the upper atmosphere temperature and the surface temperature are decreasing, and the air pressure is also decreasing, these trends combined often indicate worsening weather conditions.

### Weather Prediction:

4. Evaluate the conditions given the trends:
- The drop in upper atmosphere temperature (-2°F)
- The drop in surface temperature (-6°F)
- The drop in air pressure (-0.50 inches of mercury)

Given these conditions, the most probable weather prediction for the upcoming week is rain storms, reflecting the trend of falling temperatures and decreasing air pressure.

Therefore, the correct answer is:

C. rain storms