1.
What is another name for continental glaciers?
Correct Answer
A. Ice Caps
Explanation
Continental glaciers are large masses of ice that cover vast areas of land. They are also known as ice caps, as they form a continuous sheet of ice that spreads over the land. This name is derived from their characteristic shape and size, resembling a cap or covering over the continent. Ice caps are found in polar regions and high mountainous areas, where they play a significant role in shaping the landscape and influencing climate patterns.
2.
What are the broken-off pieces of glaciers that make it to the open sea called?
Correct Answer
A. Icebergs
Explanation
Icebergs are the broken-off pieces of glaciers that make it to the open sea. Glaciers are large masses of ice that form on land and move slowly downhill due to their own weight. As they reach the ocean, chunks of ice break off and float in the water, forming icebergs. These icebergs can vary in size, from small pieces to massive structures that can pose a threat to ships. They are a common sight in regions with glaciers, such as the Arctic and Antarctic.
3.
What is the process of a river washing away its riverbanks called?
Correct Answer
C. Erosion
Explanation
Erosion is the process of a river gradually wearing away its riverbanks. Over time, the force of the flowing water causes the riverbanks to erode, leading to the removal and transport of sediment and soil. This process can result in the widening and deepening of the river channel, as well as the formation of features such as river cliffs and meanders.
4.
What periods of the Earth's history had glaciers covering a lot of the Earth?
Correct Answer
C. Ice Ages
Explanation
During Ice Ages, large portions of the Earth were covered by glaciers. These periods, also known as glacial periods, are characterized by the expansion of ice sheets and glaciers, resulting in lower global temperatures and the formation of extensive ice masses. Ice Ages have occurred multiple times throughout Earth's history, with the most recent one ending around 11,700 years ago. These glacial periods have had a significant impact on the Earth's landscape, shaping valleys, carving out lakes, and depositing sediment.
5.
What are the traces of animals and plants left in rocks called?
Correct Answer
C. Fossils
Explanation
Fossils are the remains or traces of animals and plants that have been preserved in rocks. They provide valuable evidence of past life on Earth and help scientists understand the history and evolution of different species. Fossils can include bones, shells, imprints, and even preserved soft tissues. By studying fossils, scientists can reconstruct ancient ecosystems and learn about the biodiversity that existed millions of years ago.
6.
What theory proposes that Earth's landmasses were once connected and drifted apart?
Correct Answer
B. Continental Drift Theory
Explanation
The correct answer is Continental Drift Theory. This theory proposes that Earth's landmasses were once connected and drifted apart. It suggests that the continents were once part of a single supercontinent called Pangaea, which began to break apart around 200 million years ago. The theory was first proposed by Alfred Wegener in the early 20th century and has since been supported by geological and paleontological evidence, such as matching fossil records and the jigsaw-like fit of the continents' coastlines. Continental Drift Theory revolutionized our understanding of Earth's geological history and laid the foundation for the modern theory of plate tectonics.
7.
What did Wegener call the main landmass that all the current ones came from?
Correct Answer
D. Pangaea
Explanation
Wegener called the main landmass that all the current ones came from "Pangaea." Pangaea was a supercontinent that existed around 300 million years ago and eventually broke apart to form the continents we have today.
8.
What layer of the Earth is right below the crust?
Correct Answer
B. Mantle
Explanation
The mantle is the layer of the Earth that is right below the crust. It is located between the crust and the core. The mantle is made up of hot, solid rock and is the largest layer of the Earth. It is responsible for the movement of tectonic plates and plays a crucial role in the Earth's geological processes.
9.
What is the hardest mineral known on Earth called?
Correct Answer
B. Diamond
Explanation
Diamond is the hardest mineral known on Earth because of its unique crystal structure. It is made up of carbon atoms arranged in a strong, tightly packed lattice, which gives it its exceptional hardness. Diamond's hardness is measured as a 10 on the Mohs scale, making it significantly harder than other minerals. This hardness, along with its high refractive index and luster, makes diamond highly valued for use in jewelry and industrial applications.
10.
From which does the Global Positioning System receive its information?
Correct Answer
B. Satellites
Explanation
The Global Positioning System (GPS) receives its information from satellites. GPS relies on a network of satellites orbiting the Earth to provide accurate positioning, navigation, and timing data to users on the ground. These satellites continuously transmit signals that are received by GPS receivers on Earth, allowing them to calculate precise location coordinates. This information is then used for various applications, such as navigation systems in vehicles, tracking devices, and mapping services.
11.
What is a sudden collapse and downward motion of ice and rocks down a mountainside?
Correct Answer
B. Avalanche
Explanation
An avalanche is a sudden collapse and downward motion of ice and rocks down a mountainside. It occurs when a mass of snow or ice becomes unstable and slides downhill, often triggered by factors such as snowfall, temperature changes, or human activity. The force and speed of an avalanche can be extremely destructive, posing a significant threat to both human lives and infrastructure in mountainous regions.
12.
What is the energy released from the sun called?
Correct Answer
C. Solar Radiation
Explanation
Solar radiation refers to the energy released from the sun. It includes various forms of electromagnetic radiation, such as visible light, ultraviolet light, and infrared radiation. This energy is essential for sustaining life on Earth and is responsible for heating the planet, driving weather patterns, and supporting photosynthesis in plants.
13.
Where are tropical zones located on the Earth?
Correct Answer
C. Near The Equator
Explanation
Tropical zones are located near the equator. These regions receive high amounts of sunlight throughout the year, resulting in warm temperatures and abundant rainfall. The proximity to the equator allows for the direct rays of the sun to hit the Earth's surface, creating a climate suitable for lush vegetation and diverse wildlife. These areas are known for their tropical rainforests, such as the Amazon Rainforest in South America and the Congo Rainforest in Africa.
14.
What word means a mild or moderate temperature?
Correct Answer
D. Temperate
Explanation
The word "temperate" means a mild or moderate temperature. It is used to describe a climate or weather that is neither too hot nor too cold. This word is often used to refer to regions or seasons with pleasant and comfortable temperatures.
15.
What are large bodies of air with similar temperatures and moisture content called?
Correct Answer
B. Air Masses
Explanation
Large bodies of air with similar temperatures and moisture content are called air masses. Air masses are characterized by their temperature and humidity, which are influenced by the region they originate from. These air masses can cover vast areas and can have a significant impact on weather conditions when they move into a new region.