1.
What is a globe?
Correct Answer
B. A 3-D model of the world
Explanation
A globe is a 3-D model of the world. It represents the Earth's surface accurately, showing the continents, countries, oceans, and other geographical features. Unlike a flat map, a globe provides a more realistic representation of the Earth's shape and helps in understanding the relative sizes and positions of different regions. It is commonly used in classrooms, offices, and homes for educational and decorative purposes.
2.
The ocean water on globe is usually what color?
Correct Answer
C. Blue
Explanation
Ocean water on the globe is usually blue due to the way water molecules absorb and scatter sunlight. When sunlight enters the water, it is absorbed by the water molecules and the longer wavelengths (such as red and orange) are absorbed more than the shorter wavelengths (such as blue and green). As a result, the blue and green wavelengths are scattered and reflected back, giving the ocean its characteristic blue color.
3.
The ocean current is controlled by the______________?
Correct Answer
B. Wind
Explanation
Ocean currents are primarily controlled by the wind. The wind creates friction on the surface of the ocean, causing the water to move in the same direction as the wind. This movement of water is what creates ocean currents. The intensity and direction of the wind determine the strength and direction of the current. While factors like the sun, rain, and snow can indirectly affect ocean currents by influencing wind patterns, the wind is the primary driving force behind ocean currents.
4.
The area where the ocean meets the land is call ____________?
Correct Answer
A. Shore
Explanation
The area where the ocean meets the land is called the shore. This is the region where the waves crash onto the land, creating a distinct boundary between the water and the land. The shore is characterized by features such as beaches, cliffs, and coastal vegetation. It is an important ecological zone where various marine and terrestrial species interact, making it a vital area for both human and natural ecosystems.
5.
These tiny sea animals live on the ocean surface eating algae and plants.
Correct Answer
A. Plankton
Explanation
Plankton are tiny sea animals that live on the ocean surface and feed on algae and plants. They are unable to swim against the current and are carried by ocean currents. Plankton serve as an important food source for many marine organisms, playing a crucial role in the marine food chain.
6.
This ocean is fifteen times larger than the United States of America.
Correct Answer
D. Pacific Ocean
Explanation
The Pacific Ocean is the correct answer because it is the largest ocean on Earth and covers an area of approximately 63 million square miles. This makes it significantly larger than the United States, which has a land area of about 3.8 million square miles. The Arctic, Indian, and Atlantic Oceans are all smaller in size compared to the Pacific Ocean.
7.
There is not very much plant life on the ocean floor because
Correct Answer
A. There is not enough sunlight
Explanation
The correct answer is "there is not enough sunlight." This is because sunlight is crucial for photosynthesis, the process by which plants convert sunlight into energy. Since the ocean floor is deep underwater, sunlight cannot penetrate to reach the plants, resulting in limited plant growth.
8.
What is the largest species (kind) of shark?
Correct Answer
D. Whale Shark
Explanation
The largest species of shark is the Whale Shark. This species can grow up to 40 feet in length and can weigh up to 20 tons. Despite its massive size, the Whale Shark is a filter feeder, meaning it primarily feeds on plankton and small fish. It has a wide mouth and a unique pattern of white spots on its body, making it easily recognizable. The Whale Shark is found in warm waters around the world and is known for its gentle nature, making it a popular attraction for divers and snorkelers.
9.
How many oceans does the earth have?
Correct Answer
B. Four
Explanation
The correct answer is four because there are four recognized oceans on Earth: the Atlantic Ocean, the Pacific Ocean, the Indian Ocean, and the Southern Ocean. Each of these oceans has distinct characteristics and is separated by geographic boundaries.
10.
The great forests and meadows of the oceans are found which zone?
Correct Answer
D. The sunlit zone
Explanation
The sunlit zone refers to the uppermost layer of the ocean where sunlight can penetrate. This zone is characterized by abundant sunlight, allowing for photosynthesis to occur and supporting a diverse range of marine life. The great forests and meadows of the oceans, such as kelp forests and seagrass meadows, are typically found in the sunlit zone. This zone is also known as the euphotic zone, and it extends from the surface of the water to a depth of about 200 meters.