Earth
The energy from the sun is known as what?
Solar energy.
What % of Earth's water is saltwater?
97%.
Name at least 3 of the landforms we discussed in class.
Mountains, valleys, plains, islands, and peninsulas.
What is the difference between weather and climate?
Weather is the short term changes in the air for a given place and time while climate is a region's average weather conditions over a long period.
Name at least 3 of the climate zones we discussed in class.
Tropical, temperature, polar, dry, and highland.
It takes this amount of time for Earth to complete a full rotation on its axis.
24 hours.
What % of Earth's surface is covered by oceans?
71%.
Continents.
Why does Earth's revolution around the sun result in seasons for different parts of the world?
As Earth revolves around the sun, the part of Earth that is tilted toward the sun changes during the year, thus creating the seasons.
Temperature, rainfall, and soil conditions.
1%.
The theory of what suggests that Earth's surface is divided into a dozen slow-moving plates?
Plate tectonics.
The part of Earth tilted toward the sun receives more solar energy than the part tilted away from the sun.
What is the difference between an ecosystem and a biome?
An ecosystem is a group of plants and animals that depend on each other and the environment in which they live for survival while a biome is larger than an ecosystem and typically has several of them.
Explain how Earth's tilt affects the temperature that different places on Earth receive.
Places tilting toward the sun receive more solar energy and have warmer temperatures than those that tilt away.
Glaciers.
This theory states that the continents were once united in a single supercontinent and over time, slowly separated and moved to their present positions.
Continental drift.
False, places close to the equator are low-latitude areas and are typically much warmer.
Explain why ecosystems are so fragile and provide an example.
Ecosystems exist in a fragile balance because one small change can have a dramatic impact on many different plant and animal species. Ex: a plant species goes extinct that an animal depended on for food. This animal now has no source of food and goes extinct along with it. Another animal that relied on that animal for food now also goes extinct, etc.).
Why are low-latitude areas (those closest to the equator) typically warmer than those that are farther away?
Humans depend on water for survival and for recreation. Shortages of water can lead to crop failures and result in dehydration.
What was the name of the person who developed the theory of continental drift?
Alfred Wegener.
The poles are located on opposite ends of the earth and lie in very high-latitude areas far form the equator, thus they receive indirect ways and are colder.
When soil becomes worn out, it cannot support as many plants and becomes dead. The spread of these desert-like conditions is known as what?
Desertification.