Question

Climate Effects of Earth’s Rotation
Whether you’re familiar with the dry regions of the Midwest, the rain of the northwest coast, or the humidity of the southeast, you’re most likely used to some type of climate. Climate patterns vary with latitude, altitude, and regional geography. Over time, we refer to these differences in temperature, humidity, wind, and rain as climate.

Many factors impact the climate and weather. These include the uneven heating of the Earth’s surface and the planet’s rotation. But how do these factors cause changes in weather and climate?


The Earth’s rotation affects the climate.
Climate vs. Weather
There is a difference between “climate” and “weather.” The difference is that climate is historical. But the weather is happening now! Climate is data gathered through historical records. The weather, on the other hand, is a description of current conditions like humidity. For example, we may say that the climate of Hawaii is tropical. But the weather on Honolulu is sunny!

Meteorologists use climatology records to make forecasts. Meteorologists have many tools to predict the weather. But their predictions become more accurate from record-keeping.

Earth’s orbit around the Sun causes changes in the Sun’s radiation. This solar radiation affects the weather depending on where the Sun is shining more brightly. In the summer, the Sun shines more intensely. This is because it is closer to the Earth. In the winter, though, the Northern Hemisphere tilts away from the Earth. So, the weather is not as warm or sunny.


Solar radiation affects the Earth’s climate.
Latitude and the Earth’s Climate
Latitude also has an influence on climate. This is due to the Earth’s tilt. At higher latitudes, the Sun’s rays the Sun’s rays are spread over a greater surface. This results is less heat. Higher altitude areas are farther from the hot Equator. Lower altitude areas are closer to the Equator.

The Earth’s orbit and tilt are responsible for the four seasons. Seasons in some areas are more distinct than in others. For example, the northeastern United States is a temperate zone. This means that the northeast has distinct seasons including autumns and springs with cool temperatures.

But Arizona, which features a desert climate, is not a temperate zone. The seasons are different because of the angles of the Sun. Likewise, in Australia, the seasons are not the same. Australia experiences summer when Americans are enduring winter. This is due to the location of the Sun. While you are sledding in winter, Australians may be swimming!

Understanding Differences in Climate and Weather
Uneven heating of the Earth’s surface is seen in different climates and weather. Alaska does not receive the Sun’s heat in the same way that Alabama does. Furthermore, the revolution of the Earth means that solar radiation will be higher or lower. It depends on how close the planet is to the Sun. These factors help scientists understand differences in climate and weather.

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Questions
Which of the following sentences best states the main idea of the text?

Latitude is the main factor that influences climate.

Earth’s orbit around the Sun causes changes in the intensity of the Sun’s radiation.

The uneven heating of the Earth’s surface and the planet’s rotation influence the climates of Earth.

Global wind and ocean current patterns are influenced by the Coriolis effect.
Which of the following is left unexplained by the text?

The most habitable climates for humans on Earth

The twelve different climate zones of Earth

How the uneven heating of the Earth affects climate

How the Earth’s rotation influences climate
Which detail does not describe a factor that influences climate?

“Earth’s orbit around the Sun causes changes in the Sun’s radiation.”

“Latitude also has an influence on climate due to the Earth’s tilt.”

“Uneven heating of the Earth’s surface is seen in different climates and weather.”

“Over time, we refer to these differences in temperature, humidity, wind, and rain as climate.”
Which detail would be least important to include in a summary of the text?

“Over time, we refer to these differences in temperature, humidity, wind, and rain as climate.”

“Alaska does not receive the Sun’s heat in the same way that Alabama does.”

“The angles of the Sun are responsible for the four seasons.”

“At higher latitudes, the Sun’s rays are not as powerful as they are in lower latitudes.”

Answer 1

1) The uneven heating of the Earth’s surface and the planet’s rotation influence the climates of Earth.
- This best states the main idea because the passage focuses on multiple factors (uneven heating, orbit/tilt, rotation) that affect climate.

2) How the Earth’s rotation influences climate
- The text names rotation as a factor but does not explain how rotation affects climate.

3) “Over time, we refer to these differences in temperature, humidity, wind, and rain as climate.”
- That is a definition of climate, not a factor that influences it.

4) “Alaska does not receive the Sun’s heat in the same way that Alabama does.”
- This is a specific example; it’s the least important detail for a summary.