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Oceans and Seas

Oceans are the largest bodies of water that cover about 72 percent of the Earth's surface. Seas are large bodies of water that border the land and the oceans, and are sometimes lakes, which are landlocked seas.

18,245 Questions

In the ocean how does water temperature change as depth increases?

In the ocean, water temperature generally decreases with increasing depth due to the absorption of sunlight by the surface layer, which warms it. This phenomenon creates distinct thermal layers, with the warmest water found near the surface and a rapid drop in temperature occurring in the upper few hundred meters, known as the thermocline. Below the thermocline, temperatures stabilize and remain cold, often near freezing in the deep ocean.

Why are there fewer marine organisms in the oceans depths?

There are fewer marine organisms in the ocean depths primarily due to the extreme conditions, such as high pressure, low temperatures, and complete darkness, which make survival challenging. Additionally, the availability of food decreases significantly with depth, as sunlight cannot penetrate to support photosynthetic life. This lack of energy sources limits the growth of primary producers, which in turn restricts the entire food web. Consequently, fewer organisms are adapted to thrive in these harsh environments.

What are all the provinces that have ocean coastlines considering Hudson bay an ocean?

In Canada, the provinces with ocean coastlines, including Hudson Bay as an ocean, are British Columbia, Alberta, Saskatchewan, Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia, Prince Edward Island, and Newfoundland and Labrador. British Columbia has coastlines on the Pacific Ocean, while the others border the Atlantic Ocean or Hudson Bay. These provinces collectively provide a diverse range of marine environments and ecosystems.

What if The chef touches raw sausage and then touches toasted bread?

If the chef touches raw sausage and then immediately handles toasted bread without washing their hands, there is a risk of cross-contamination. Pathogens from the raw sausage could transfer to the bread, potentially leading to foodborne illness if the bread is consumed without further cooking. It's crucial for food safety to wash hands thoroughly after handling raw meat before touching any other food items. Proper food handling practices help prevent the spread of harmful bacteria.

Where do currents form large circles that might take you for an unnecessary spin?

Currents that form large circles, often referred to as gyres, typically occur in the world's oceans. These gyres are driven by wind patterns and the Earth's rotation, creating massive circular currents in each major ocean basin. For instance, the North Atlantic Gyre and the North Pacific Gyre can trap debris and influence marine navigation, potentially leading to unnecessary detours or spins for vessels caught in their flow.

How much does pressure change in the depth of the ocean?

Pressure in the ocean increases with depth due to the weight of the overlying water. On average, pressure increases by about one atmosphere (approximately 14.7 psi or 101.3 kPa) for every 10 meters (about 33 feet) of depth. For example, at a depth of 1,000 meters, the pressure is roughly 100 times greater than at sea level, totaling around 100 atmospheres. This increase in pressure significantly affects marine life and underwater equipment.

How cold is the bottom of the ocean?

The temperature at the bottom of the ocean varies depending on the location but generally ranges from about -2 to 4 degrees Celsius (28 to 39 degrees Fahrenheit). In deep ocean regions, like the abyssal plains, temperatures are typically near freezing, while near hydrothermal vents, temperatures can be significantly higher due to geothermal activity. Overall, the deep ocean remains cold and dark, with little variation in temperature compared to surface waters.

Did men who were trappers earn a living along the Atlantic coast or on the frontier?

Men who were trappers primarily earned a living on the frontier rather than along the Atlantic coast. The frontier offered vast, untamed lands rich in fur-bearing animals, which provided opportunities for trapping and trading. In contrast, the Atlantic coast was more developed and focused on agriculture and commerce, making it less conducive to the trapping lifestyle. Thus, trappers thrived in the wilderness areas where they could pursue their trade.

What is the ocean zone that is the deepest in the world?

The deepest ocean zone in the world is the Mariana Trench, specifically the Challenger Deep, which reaches depths of about 36,000 feet (approximately 10,900 meters). This trench is located in the western Pacific Ocean and is known for its extreme pressure and unique ecosystem. The conditions in this zone are harsh, making it one of the least explored areas on Earth.

What is the permian sea How do we know it existed?

The Permian Sea refers to a shallow marine environment that existed during the Permian period, roughly 299 to 252 million years ago, covering large parts of what is now North America and Europe. Evidence of its existence is found in geological formations, fossil records, and sedimentary rock layers that contain marine fossils, indicating the presence of ancient marine life. Additionally, the distribution of certain types of rocks and minerals associated with marine environments supports the idea of this expansive sea during that era.

Why do oceans have high npp?

Oceans have high net primary productivity (NPP) primarily due to the presence of phytoplankton, which are microscopic plants that harness sunlight and nutrients to produce organic matter through photosynthesis. Coastal areas and regions with upwelling currents are especially productive, as they bring nutrient-rich waters from the depths to the surface. Additionally, the vast expanse of the ocean allows for large-scale photosynthesis, contributing significantly to global NPP. Overall, the combination of sunlight, nutrients, and expansive marine ecosystems drives the high productivity of oceanic environments.

How might the earth be different if the earth's surface adsorbed greater or less percentages of radiation?

If the Earth's surface absorbed greater percentages of radiation, it could lead to higher global temperatures, potentially exacerbating climate change and altering ecosystems. Conversely, if the surface absorbed less radiation, the planet might experience cooler temperatures, which could disrupt weather patterns and reduce the viability of certain habitats. Both scenarios would significantly impact agriculture, water resources, and biodiversity. Overall, the balance of radiation absorption is crucial for maintaining the Earth's climate and supporting life.

What do modern scientists use to map in absurd the deep ocean?

Modern scientists use a combination of advanced technologies to map the deep ocean, including multibeam sonar systems, autonomous underwater vehicles (AUVs), and remotely operated vehicles (ROVs). These tools allow for high-resolution mapping by emitting sound waves to measure the seafloor's topography and capturing detailed images of underwater features. Additionally, satellite altimetry helps assess the ocean's surface, providing data on underwater mountains and valleys. Collectively, these methods enable a more comprehensive understanding of the ocean's depths.

How deep in water can you see?

The depth to which you can see in water depends on several factors, including water clarity, light conditions, and the presence of particles or organisms. In clear ocean water, visibility can reach over 60 meters (197 feet), while in murky waters, it may be less than a meter. Generally, light penetration decreases with depth, making it difficult to see beyond certain limits, which typically range from 10 to 30 meters in most environments.

How might the seas east of china act as barriers to trade and travel?

The seas east of China, particularly the East China Sea and the South China Sea, can act as barriers to trade and travel due to their challenging navigation conditions, including rough waters and unpredictable weather patterns. Additionally, geopolitical tensions and territorial disputes in these waters can lead to increased military presence and restrictions on maritime traffic. Moreover, the region's complex network of islands and reefs can complicate shipping routes, making navigation more difficult and potentially dangerous. These factors can ultimately hinder the efficiency and safety of maritime trade and travel.

What ocean borders astralia's western coast line?

Australia's western coastline is bordered by the Indian Ocean. This vast body of water plays a crucial role in the country's climate and marine biodiversity, supporting various ecosystems and industries. The Indian Ocean is known for its warm waters and is an important route for maritime trade.

Is topeka located in the midwestnortheastsouthor pacific coast?

Topeka is located in the Midwest region of the United States. It is the capital city of Kansas and is situated in the eastern part of the state. The Midwest is known for its agricultural contributions and diverse landscapes.

What is a fast growing plant in the ocean?

A fast-growing plant in the ocean is seagrass, specifically species like Zostera marina (eelgrass). Seagrasses can grow up to 10-20 centimeters per week under ideal conditions, providing essential habitats for marine life, stabilizing sediments, and improving water quality. Their rapid growth helps in carbon sequestration, making them crucial for combating climate change. Additionally, they serve as important food sources for various marine animals, including sea turtles.

What is the author purpose in the story the aqua lung bringing ocean exploration to new depths?

The author's purpose in "The Aqua Lung: Bringing Ocean Exploration to New Depths" is to highlight the significance of the invention of the aqua lung in revolutionizing underwater exploration. By detailing its impact on marine research and adventure, the author aims to inspire appreciation for the ocean's mysteries and the technological advancements that allow for deeper understanding. Additionally, the narrative emphasizes the relationship between innovation and discovery, showcasing how such tools have expanded human knowledge of the underwater world.

Could the notify party on a seaway bill be entitled to the cargo without endorsement from the consignee?

Yes, the notify party on a seaway bill can be entitled to the cargo without the consignee's endorsement, depending on the terms of the bill and applicable laws. Typically, a seaway bill serves as a document of title, and while it generally indicates the consignee, the notify party may have rights to take possession of the cargo as designated by the shipper. However, the specific rights of the notify party can vary based on the shipping line's policies and the jurisdiction in which the transaction takes place. It's essential to review the terms of the bill and consult legal advice if necessary.

How might the opening of the saint Lawrence seaway have affected the postwar economy?

The opening of the St. Lawrence Seaway in 1959 significantly enhanced trade and transportation in North America by allowing larger cargo vessels to navigate the Great Lakes and access the Atlantic Ocean. This development facilitated the movement of goods, reduced shipping costs, and opened new markets, contributing to economic growth and industrial expansion in the region. It also stimulated investment in infrastructure and industries related to shipping and manufacturing, ultimately bolstering the postwar economy. Furthermore, the Seaway helped integrate the U.S. and Canadian economies, fostering cross-border trade and collaboration.

Where is it more difficult to obtain oil the ocean or dry land?

It is generally more difficult to obtain oil from the ocean compared to dry land due to the complex challenges associated with offshore drilling. Offshore oil extraction requires advanced technology and equipment to operate in harsh marine environments, along with higher costs for infrastructure and safety measures. Additionally, environmental regulations and potential impacts on marine ecosystems can complicate the process further. In contrast, onshore oil extraction typically involves more accessible locations and established infrastructure.

When does the gulf stream occur?

The Gulf Stream is a warm ocean current that flows from the Gulf of Mexico along the eastern coast of the United States and across the Atlantic Ocean. It operates year-round, but its intensity can vary seasonally, generally being stronger in the winter months due to differences in water temperature and atmospheric conditions. The current plays a significant role in regulating climate, particularly in North America and Western Europe.

Which is more important human life or the surface currents?

Human life is generally considered more important than surface currents, as the well-being and survival of individuals take precedence over natural phenomena. While surface currents play a crucial role in regulating climate and marine ecosystems, they do not possess intrinsic value compared to human life. However, it's essential to recognize that a healthy environment, including stable ocean currents, is vital for sustaining human life and can impact the quality of life on Earth. Balancing both is key to ensuring a sustainable future.

Which isa warm countercurrent that periodically flows southward along the coasts of Ecuador and Peru?

The warm countercurrent that flows southward along the coasts of Ecuador and Peru is known as the El Niño Current. This current is part of the larger El Niño phenomenon, which is characterized by the periodic warming of sea surface temperatures in the central and eastern Pacific Ocean. It can significantly impact weather patterns, marine life, and fisheries in the region. The El Niño Current typically flows during the El Niño phase, affecting oceanographic conditions along the coasts.