G7 Weather and Climate Revision

You hear someone say, "The average temperature this week was 79 degrees." What does this statement describe?

• Tides

• Current.

• Weather.

• Climate

Answer explanation

The statement about the average temperature refers to weather, which describes short-term atmospheric conditions. Climate, on the other hand, refers to long-term patterns. Thus, the correct choice is Weather.

The temperature always reaches over a 100 degrees in the summer time in Texas describes

• Humidity

• Weather

• Atmospheric

• Climate

Answer explanation

The statement describes a consistent pattern of high temperatures during summer in Texas, which is characteristic of climate. Weather refers to short-term conditions, while climate encompasses long-term averages.

In which layer of the atmosphere does most weather occur?

• Troposphere

• Mesosphere

• Stratosphere.

• Thermosphere

Answer explanation

Most weather occurs in the Troposphere, the lowest layer of the atmosphere, where clouds, rain, and storms form due to temperature changes and moisture. The other layers, like the Stratosphere and Mesosphere, are less involved in weather phenomena.

A student climbs the stairs in her house on a summer day and notices that it is much hotter upstairs than downstairs. What is the best explanation for this?

• Warm air moves upward in convection currents.

• The upstairs is closer to the sun.

• The Coriolis Effect heats air that is higher

• Warm air sinks in convection currents.

Answer explanation

Warm air rises due to convection currents, causing the upstairs to be hotter than downstairs. This is because warm air is less dense and moves upward, while cooler air sinks.

In which direction do prevailing westerlies flow?

• From East to West

• From North to South

• From South to West

• From West to East

Answer explanation

Prevailing westerlies are winds that blow from the west towards the east. This is due to the rotation of the Earth and the Coriolis effect, making the correct answer 'From West to East'.

Define weather.

Answer explanation

Weather refers to the short-term atmospheric conditions in a specific area, including temperature, humidity, precipitation, and wind. It differs from climate, which describes long-term patterns.

State the elements of weather and climate.

Answer explanation

The elements of weather include temperature, humidity, precipitation, wind, and atmospheric pressure. Climate refers to the long-term average of these weather elements over a significant period in a specific region.

State 1 difference between relief rainfall with frontal rainfall.

Answer explanation

Relief rainfall occurs when moist air is forced to rise over mountains, cooling and condensing to form rain. In contrast, frontal rainfall happens when warm air meets cold air, causing the warm air to rise and cool, leading to precipitation.

Identify 1 factor that affect climate.

Answer explanation

One factor that affects climate is greenhouse gas emissions. These gases trap heat in the atmosphere, leading to global warming and altering weather patterns, which significantly impacts climate.

Define the global atmospheric circulation?

Answer explanation

Global atmospheric circulation refers to the large-scale movement of air around the planet, driven by solar energy. It includes wind patterns and ocean currents, influencing climate and weather systems globally.