1.
Which salt water creature is known to change its sex?
Correct Answer
D. Oyster
Explanation
Oysters are known to change their sex, a phenomenon called sequential hermaphroditism. They start their lives as males and then transition to females as they grow older. This ability to change sex allows them to increase their chances of reproduction by maximizing the number of potential mates. Oysters are filter feeders and play a crucial role in marine ecosystems, as well as being a popular seafood delicacy.
2.
Which sea creature breathes through its skin?
Correct Answer
B. Jellyfish
Explanation
Jellyfish breathe through their skin. They have a thin layer of tissue called the epidermis, which allows oxygen to pass through and carbon dioxide to be released. This process is known as cutaneous respiration. Unlike other sea creatures, jellyfish do not have gills or lungs to extract oxygen from the water or air. Instead, they rely on their skin to absorb oxygen directly from the surrounding water, making them unique in their respiratory system.
3.
In which ocean did the Titanic sink?
Correct Answer
B. Atlantic Ocean
Explanation
The Titanic sank in the Atlantic Ocean. This is a well-known fact as the ship hit an iceberg and sank in the North Atlantic Ocean on April 15, 1912. The tragedy of the Titanic is one of the most famous maritime disasters in history. The ship was on its maiden voyage from Southampton to New York City when it sank, resulting in the loss of more than 1,500 lives. The wreckage of the Titanic was discovered in 1985, lying at a depth of about 12,500 feet in the North Atlantic Ocean.
4.
What is the name of the legendary fable city that is believed to have been submerged in the great Atlantic Ocean?
Correct Answer
C. Atlantis
Explanation
Atlantis is the correct answer because it is widely believed to be the name of the legendary fabled city that was said to have been submerged in the great Atlantic Ocean. The story of Atlantis has been passed down through generations and has become a popular mythological tale. While there is no concrete evidence of its existence, many people continue to be fascinated by the idea of this mysterious lost city.
5.
A volcano the size of New Mexico has been identified under the Pacific Ocean, about 1,000 miles (1,600 kilometers) east of Japan, what is its name?
Correct Answer
D. Tamu Massif
Explanation
Tamu Massif is the correct answer because it is a volcano the size of New Mexico that has been discovered under the Pacific Ocean, east of Japan. Mount Fuzi, Eyjafjallajökull, and Krakatoa are not the correct answers as they are either not the correct size or not located in the same area as described in the question.
6.
Which ocean on Earth has the lowest oxygen content?
Correct Answer
C. Indian Ocean
Explanation
The Indian Ocean has the lowest oxygen content among the four options. This is because it experiences high levels of oxygen depletion due to factors such as warm temperatures, low nutrient levels, and high levels of organic matter. These conditions promote the growth of oxygen-consuming bacteria and phytoplankton, leading to a decrease in oxygen levels. Additionally, the Indian Ocean is also affected by human activities such as pollution and overfishing, which further contribute to the low oxygen content.
7.
The poop of which sea creature is used in making perfumes?
Correct Answer
B. Sperm whale
Explanation
Sperm whales produce a waxy substance called ambergris in their intestines, which is often referred to as "whale poop." This substance has a unique and pleasant aroma and is used in the production of perfumes. Therefore, the correct answer is sperm whale.
8.
Which term is used to refer to the scientific study of Oceans?
Correct Answer
B. Oceanology
Explanation
Oceanology is the study of the oceans, including their physical and chemical properties, marine life, and the interactions between the ocean and the atmosphere, land, and human activities. It encompasses various disciplines such as marine biology, oceanography, and marine geology. Therefore, Oceanology is the correct term used to refer to the scientific study of oceans.
9.
Barbarossa brothers of the Mediterranean were :
Correct Answer
B. Pirates
Explanation
The Barbarossa brothers of the Mediterranean were pirates. This can be inferred from the fact that pirates were known to operate in the Mediterranean during that time period. The term "Barbarossa" refers to a group of Ottoman corsairs who were active during the 16th century. They were notorious for their piracy activities, including capturing ships, raiding coastal towns, and plundering valuable treasures. Therefore, it can be concluded that the Barbarossa brothers were indeed pirates.
10.
Challenger Deep in Marina Trench, the deepest point on Earth's oceans, is located in which part of the Pacific ocean?
Correct Answer
B. Western Pacific Ocean
Explanation
Challenger Deep in Marina Trench, the deepest point on Earth's oceans, is located in the Western Pacific Ocean. This is because the Marina Trench is situated in the western part of the Pacific Ocean, specifically in the Mariana Islands region. The trench reaches a depth of approximately 36,070 feet (10,994 meters) below sea level, making it the deepest known point in any of Earth's oceans.