At the bottom of the ocean, what is recognized as the most valuable resource in the world today

Combustible ice can be very difficult to mine.

(1) exploitation of living marine resources, such as the development of marine fisheries;

2) the exploitation of marine mineral resources, such as the exploitation of seabed oil and natural gas;

3) exploitation of marine water resources, such as desalination;

4) the development of marine space resources, such as the development of marine transport, the construction of undersea tunnels;

5) development of marine tourism resources, such as the construction of bathing beaches, diving, etc.;

6) exploitation of marine chemical resources, such as the extraction of salts from seawater;

At present, which part of the ocean is mainly used for the development of marine resources by human beings?

Continental Shelf (Correct Answer).

Continental slope. Oceanic Basin.

Mid-ocean ridges. Answer analysis: The shallow sea area of the continental shelf is a good place for the growth and development of marine plants and marine animals, in addition to sediment, the never-ending rivers are like conveyor belts, bringing organic matter on land to the continental shelf continuously.

The shallow sea area of the continental shelf has become the richest sea area due to the abundant nutrients on the land.

The ocean is a treasure trove of human resources.

According to the nature or function of resources, they are divided into marine living resources and water resources. About 85% of the world's aquatic products are produced in the ocean. With fish as the main body, it accounts for more than 80% of the world's total marine aquatic products, and there are also abundant algae resources.

Seawater is rich in seawater chemical resources, and more than 80 kinds of seawater chemicals have been discovered.

Among them, 11 elements (chlorine, sodium, magnesium, potassium, sulfur, calcium, bromine, carbon, strontium, boron and fluorine) account for more than the total amount of dissolved substances in seawater, and more than 50 kinds of chemical substances can be extracted. Due to the movement of seawater, marine power resources are generated, mainly including tidal energy, wave energy, ocean current energy, and temperature difference energy and salt difference energy caused by temperature difference and salt difference of seawater.

It is estimated that the available power of global seawater temperature difference energy is 100 10 8 kilowatts, and the renewable power of tidal energy, wave energy, river energy and seawater salt difference energy is about 10 10 8 kilowatts.

The ocean's contribution to humanity:

1. The ocean has a huge biological system, which produces a large amount of oxygen for the earth.

2. The ocean is rich in biological resources and is the largest base for protein.

3. There are huge mineral resources in the ocean, according to the research of scientists, almost all the minerals found on land are in the ocean, and there are no dates on land in the ocean.

4. There are inexhaustible marine chemical and marine energy resources in the ocean, including a large number of chemicals and fresh water contained in seawater, as well as abundant power, hydraulic and thermal energy resources.

5. The ocean is the kingdom of medicine. There are more than 200,000 species of organisms and more than 25,000 kinds of plants growing in the ocean, which is a natural marine medicine resource.

6. The ocean has a huge self-cleaning capacity, decomposing a large number of toxic substances for the earth every day.

7. The ocean is the climate regulator on which human beings depend for survival and the source of the earth's water cycle, which not only solves the global water source problem, but also provides 70% of the oxygen for human beings.

8. Also, bring tourism value. Because there are many beautiful beaches in the world with beautiful sea views.

The ocean is a treasure trove of resources that are far from being fully exploited, and they have great prospects.

The ocean covers about 71% of the Earth's surface area and has great potential for development. Taking seawater resources as an example, the utilization of seawater resources and the utilization of seawater chemical resources have very broad prospects.

The reserves of seawater resources are about 9 tons to the power of 900 million, accounting for about 97% of the total water on the planet. The utilization of seawater resources mainly includes the desalination of seawater and the direct use of seawater for circulating cooling. Desalination of seawater can be achieved by extracting fresh water from seawater or separating salt from seawater.

The main methods of seawater desalination include distillation, electrodialysis, ion exchange, etc. Among them, the distillation method has the longest history, and the technology and process are relatively mature, but the cost is higher. Therefore, the combination of seawater desalination with chemical production and energy technology has become an important direction for the comprehensive utilization of seawater.

Development and utilization of seawater chemical resources.

Due to the interaction with rocks, the atmosphere and organisms, a large number of inorganic and organic substances are dissolved and suspended in seawater, according to the content, the two elements of hydrogen and oxygen in the water, plus chlorine, sodium, potassium, magnesium, calcium, sulfur, carbon, fluorine and other eleven elements more than 99% of the total, the rest are trace elements, a total of more than 80 elements. Although there are many types of elements in seawater and the total reserves are large, the enrichment of many elements is very low. For example, the total reserves of gold in seawater are 5x10 to the power of 7 tons, while the content of 1 ton of seawater is only 4x10 to the minus 6 grams of gold.

As a result, the ocean is a vast treasure trove of chemical resources that are far from fully exploited.

China's seawater salt production has a long history. At present, in addition to eating, sodium chloride prepared from seawater is also used as industrial raw materials, such as caustic soda, soda ash, sodium metal, chlorine, hydrochloric acid, Jianda vertical bleaching powder and other chlorine-containing chemical products. The production of magnesium, potassium, bromine and their chemical products from seawater is a development of the traditional seawater salt industry.

In industrial production, bromine extraction from seawater can be combined with other production processes, such as the reaction requires a certain temperature, and circulating seawater used for cooling in thermal power plants and nuclear power plants can be used to reduce energy consumption; Another example is that in the concentrated seawater after desalination, the bromine ions are concentrated, and the efficiency of bromine production can be improved by using this as a raw material.

In addition to some of the above examples, the acquisition of other substances and energy from seawater has great prospects. For example, uranium and heavy water are currently important raw materials in nuclear energy development, and the extraction of uranium and heavy water from seawater is of strategic importance for a country. Chemistry will also play an increasing role in the development of marine medicines.

Tidal energy and wave energy are also new energy sources that have received more and more attention and development.

The research and development of seawater resources must not be carried out at the expense of the environment and must not contradict the principles of sustainable development.

Summary. Mineral resources in the ocean are a general term for various types of mineral resources at the bottom of coastal areas, shallow seas, deep seas, oceanic basins and mid-ocean ridges. According to the genesis and occurrence of the deposit, it is divided into placer ore, seabed authonymous minerals and minerals in seabed consolidated rock.

The reason why the development of marine mineral resources in the United States is the earliest and most developed.

Hello, dear and happy to answer for you, the earliest and most developed reason for the development of marine mineral resources in the United States is the interest in deep seabed mineral resources. The technology of exploration and development of marine mineral resources, especially the technology of exploration and development of deep-sea mineral resources, is a high-tech-intensive industry.

Mineral resources in the ocean are a general term for various types of mineral resources at the bottom of coastal areas, shallow seas, deep seas, oceanic basins and mid-ocean ridges. According to the genesis and occurrence of the deposit, it is divided into placer ore, seabed authonymous minerals and minerals in seabed consolidated rock.

(1) exploitation of living marine resources, such as the development of marine fisheries;

2) the exploitation of marine mineral resources, such as the exploitation of seabed oil and natural gas;

3) exploitation of marine water resources, such as desalination;

4) the development of marine space resources, such as the development of marine transport, the construction of undersea tunnels;

5) development of marine tourism resources, such as the construction of bathing beaches, diving, etc.;

6) exploitation of marine chemical resources, such as the extraction of salts from seawater;