1.
Where do hurricanes form?
Correct Answer
B. Over The Ocean
Explanation
Hurricanes form over the ocean because they require warm, moist air to fuel their development. The warm ocean water provides the necessary energy for the hurricane to intensify and grow. As the warm air rises, it creates an area of low pressure, and surrounding air rushes in to fill the void. This process continues, causing the storm to rotate and strengthen. Once a hurricane makes landfall, it begins to weaken due to the loss of warm ocean water as its energy source. Therefore, hurricanes primarily form over the ocean.
2.
What event can cause much damage from the shaking of the Earth's crust?
Correct Answer
D. Earthquake
Explanation
An earthquake can cause much damage from the shaking of the Earth's crust. Earthquakes occur when there is a sudden release of energy in the Earth's crust, resulting in seismic waves that shake the ground. These vibrations can cause buildings and infrastructure to collapse, landslides, tsunamis, and other destructive effects. Unlike hurricanes, tornadoes, and thunderstorms, which primarily cause damage through wind and precipitation, earthquakes specifically result in shaking and ground displacement, making them the correct answer for this question.
3.
What is the opening that spews out lava called?
Correct Answer
B. Volcano
Explanation
A volcano is the correct answer because it is an opening in the Earth's crust through which molten lava, ash, and gases are ejected. Volcanoes are formed when there is a rupture or weak spot in the Earth's crust, allowing magma to rise to the surface. The lava that spews out of a volcano can cause destruction and create new landforms over time.
4.
Which of the following is a natural resource?
Correct Answer
B. Wood
Explanation
Wood is considered a natural resource because it is derived from trees, which are a part of the Earth's natural environment. Wood can be used for various purposes such as construction, furniture, and fuel. It is a renewable resource as trees can be replanted and grown again. Computers, books, and pencils, on the other hand, are not natural resources as they are man-made products that require the extraction and processing of various materials.
5.
What is the top layer of the soil called?
Correct Answer
C. Topsoil
Explanation
Topsoil is the correct answer because it refers to the uppermost layer of soil, typically the top 2-8 inches, where most of the organic matter, nutrients, and microorganisms are found. It is crucial for plant growth and provides a habitat for many organisms. The term "strata" refers to layers of rock, not soil. "Dirt" is a general term for soil or earth, but it does not specifically refer to the top layer. "Earth" is a more general term that can refer to the entire planet or soil in general, but it does not specifically indicate the top layer.
6.
Which of these is a soil that is better to grow plants in?
Correct Answer
A. Loam
Explanation
Loam is considered a better soil for growing plants because it has a balanced mixture of sand, silt, and clay. This composition allows for good drainage while retaining enough moisture and nutrients for plants to thrive. Additionally, loam has a crumbly texture that promotes root growth and provides a stable structure for plants to anchor themselves.
7.
What is the hard, dark substance found in the ground that is mined for fuel?
Correct Answer
A. Coal
Explanation
Coal is the correct answer because it is a hard, dark substance found in the ground that is mined for fuel. It is formed from the remains of plants that lived and died millions of years ago, and it is a major source of energy worldwide. Coal is burned to produce heat and electricity, making it an important fuel for industries and power generation.
8.
What substance can layers of decayed plants form over time?
Correct Answer
A. Peat
Explanation
Over time, layers of decayed plants can form a substance called peat. Peat is formed in wetland areas where dead plant material accumulates and decomposes slowly due to the lack of oxygen. The process of decay is inhibited, leading to the accumulation of partially decomposed plant matter. This organic material forms layers over time and eventually becomes peat, which is commonly used as a fuel source and in horticulture for its ability to retain water and nutrients.
9.
Which of these types of pollution occurs naturally?
Correct Answer
C. Volcanic Ash
Explanation
Volcanic ash is the correct answer because it is a type of pollution that occurs naturally. When a volcano erupts, it releases ash into the atmosphere, which can then spread over large areas. This ash contains various harmful substances and can cause air pollution, affecting both human health and the environment. Unlike exhaust, sewage, and smog, which are primarily caused by human activities, volcanic ash is a result of natural geological processes.
10.
What are mounds of sand that have been windblown called?
Correct Answer
B. Dunes
Explanation
Dunes are mounds of sand that have been formed by the action of wind. They are typically found in deserts or coastal areas where there is an abundant supply of sand and strong winds. The wind carries and deposits the sand particles, creating these distinct landforms. Dunes can vary in size and shape, ranging from small ripples to large, towering formations. They are a result of the continuous interaction between wind and sand, and they play an important role in shaping and stabilizing the surrounding landscape.
11.
What famous volcano erupted in 1980 after many years of dormancy?
Correct Answer
A. Mount St. Helens
Explanation
Mount St. Helens is the correct answer because it is a famous volcano that erupted in 1980 after a long period of dormancy. This eruption was one of the most destructive volcanic events in the history of the United States, resulting in the loss of lives and extensive damage to the surrounding area. The eruption of Mount St. Helens was a significant event that drew global attention and has since become a well-known example of volcanic activity.
12.
What destructive event can happen when it rains for a long period of time?
Correct Answer
D. Flood
Explanation
When it rains for a long period of time, a destructive event that can occur is a flood. Excessive rainfall can lead to the overflow of rivers, lakes, and other bodies of water, causing them to breach their banks and inundate surrounding areas. Floods can result in extensive damage to infrastructure, homes, and agriculture, as well as loss of life and displacement of populations. The force of the water can erode soil, collapse buildings, and sweep away vehicles and other objects, making it a highly destructive event.
13.
What word means "the shakes that come after the earthquakes"?
Correct Answer
A. Aftershocks
Explanation
Aftershocks refers to the tremors or vibrations that occur after an earthquake. These secondary seismic events are caused by the adjustment of the Earth's crust following the main earthquake. The word "aftershocks" specifically describes the shakes that come after the initial earthquake and is the most appropriate term for this phenomenon. "Shatters," "Earthshakes," and "Little Earthquakes" do not specifically convey the concept of secondary tremors following an earthquake.
14.
What happens when hot and cold water meet?
Correct Answer
A. The Hot Water Floats On Top
Explanation
When hot and cold water meet, the hot water floats on top. This is because hot water is less dense than cold water. As water is heated, its molecules move faster and spread out, causing the water to expand and become less dense. On the other hand, cold water has slower-moving molecules and is more dense. Therefore, when hot and cold water are combined, the less dense hot water rises to the top while the denser cold water sinks to the bottom.
15.
What are the pilots who guide ship captains to docking areas safely called?
Correct Answer
A. Harbor Pilots
Explanation
Harbor Pilots are the pilots who guide ship captains to docking areas safely. They have specialized knowledge and expertise in navigating through harbors, ports, and other waterways. These pilots are familiar with the local conditions, such as tides, currents, and potential hazards, and they use this knowledge to safely guide ships into and out of ports. Their role is crucial in ensuring the safe and efficient navigation of vessels in busy harbor areas.
16.
What activity allows humans to go underwater with oxygen tanks and a wetsuit?
Correct Answer
A. Scuba Diving
Explanation
Scuba diving is the correct answer because it involves humans going underwater with oxygen tanks and a wetsuit. Scuba divers use the oxygen tanks to breathe underwater and the wetsuit helps to keep them warm. Snorkeling also allows humans to go underwater but without the use of oxygen tanks. Plundering and skiing are unrelated to going underwater with oxygen tanks and a wetsuit.
17.
What happens to the pressure of water as depth under the water increases?
Correct Answer
A. It Increases
Explanation
As depth under the water increases, the pressure of water increases. This is because the weight of the water above exerts a force on the water below, causing an increase in pressure. The deeper the water, the greater the weight and therefore the higher the pressure.
18.
What polluting material can choke an animal by getting caught around its neck?
Correct Answer
D. Plastic Rings
Explanation
Plastic rings can choke an animal by getting caught around its neck. These rings are often discarded as waste and can end up in the environment, particularly in bodies of water. When animals come into contact with these rings, they may accidentally get their necks entangled in them, leading to suffocation or other injuries. This is why it is important to properly dispose of plastic waste and consider using alternative packaging materials that are more environmentally friendly.
19.
Which of these was one of the original universal elements?
Correct Answer
D. Air
Explanation
Air is one of the original universal elements because it is a fundamental component of the natural environment and is essential for the survival of all living beings. It is a mixture of gases, primarily consisting of nitrogen, oxygen, and small amounts of other gases. Air is present everywhere on Earth and plays a crucial role in various processes such as respiration, photosynthesis, and weather patterns. Therefore, it is considered one of the original universal elements.
20.
Deep trenches such as the Grand Canyon were formed by what process?
Correct Answer
B. Erosion
Explanation
The correct answer is erosion. Deep trenches like the Grand Canyon were formed over millions of years by the gradual wearing away of rock and soil by natural forces such as water, wind, and ice. This process, known as erosion, slowly carved out the deep and steep walls of the canyon, creating the impressive geological feature that we see today.