A. Respiration of marine life
Chemical processes in seawater
C. Photocooperative uses of marine plants
D. Groundwater intake
6. Where are the main oil resources in the oceans and seas? ( )
A. Ocean surface
B. Deep sea areas
C. The seamounts
None of the above
7. What are the causes of the phenomenon of red tides in the oceans? ( )
A. Rising seawater temperatures
B. Water quality pollution
C. Food chain anomalies
D. All the above
8. What are the impacts of marine coral reefs on marine ecosystems? ( )
A. Maintenance of marine biodiversity
Promoting the economic development of the oceans
C. Improving the marine environment
D. All the above
9. What caused the tsunami in the oceans? ( )
Earthquake
Typhoon
C. Floods
D. Geological landslides
10. What are deep-sea hydrothermal vents in the oceans? ( )
A. Volcanic eruptions in the deep sea
Bacteriological communities in the deep sea
C. Mineral concentrations in the deep sea
D. Biological concentrations in the deep sea
Ii. Multi-selection topics (5 in total)
What are the following important components of marine ecosystems? ( )
A. Marine life
B. Marine environment
C. Marine sediments
D. Marine climate
What are the possible environmental implications of the exploitation of marine resources? ( )
A. Pollution by sea
B. Damage to benthic ecosystems
C. Overfishing of living marine resources
D. Ocean acidification
13. What are the main sources of marine pollution? ( )
A. Industrial wastewater discharges
B. Pesticide fertilizer loss
C. Living sewage discharges
D. Oil spills at sea
14. What are the main bases for the classification of marine organisms? ( )
A. External patterns
B. Internal structure
C. Reproduction patterns
D. Lifestyle
15. What types of ocean energy are the following? ( )
Water temperature differential
B. Wave energy
C. Current energy
D. Ocean tidal energy
Iii. Filling out of the question (5 in total)
Life on earth originated about 4. 5 billion years ago。
Coral reefs are made up mainly of the bones of organisms。
Salt in the oceans is derived mainly from 。
The tide phenomena in the oceans are caused by gravity。
The deepest part of the ocean is , which is about 。
Iv. Questions of judgement (5 in total)
21. The oceans are the largest freshwater resource on earth. ( )
A. Correct b. Errors
22. All coral reefs are red. ( )
A. Correct b. Errors
23. Marine biodiversity is highest in tropical areas. ( )
A. Correct b. Errors
24. The tsunami was caused by an earthquake. ( )
A. Correct b. Errors
25. Oil resources in the oceans are black. ( )
A. Correct b. Errors
V. Simplicity (5 topics)
26. What role does plankton in the oceans play in marine ecosystems
27. What are the impacts of global warming on marine ecosystems
28. What are the risks to marine ecosystems from marine oil spills
29. What is the role of marine protected areas
30. What is ocean acidification in the oceans? What are its impacts on marine ecosystems
Part of the tenth marine knowledge competition library
I. Selected topics (10 in total)
1. Answer d
[decomposition] salt in the ocean is derived mainly from atmospheric precipitation, river inflow and volcanic eruptions on the sea floor, hence option d。
2. "b"
[assuring] coral reefs are mainly located in tropical and subtropical areas where water is suitable for coral growth, so choose b。
3. B
[the resolution] warm water areas are the highest biodiversity due to adequate light and temperature。
4. B
[dissects] the tidal phenomenon in the ocean is caused by the gravity of the moon and the sun。
5. [answer]c
[parallel] oxygen in the oceans is derived mainly from the photocosynthesis of marine plants, option c。
6. [answer]c
The oil resources in the ocean are mainly located in seamounts, option c。
7. Answer d
[assuring] the phenomenon of red tides in the oceans is caused by a variety of causes, including rising sea temperatures, pollution of water quality and food chain anomalies。
8. Answer d
[disarm] coral reefs in the oceans have multiple impacts on marine ecosystems, including maintaining biodiversity, promoting economic development and improving the environment。
9. A
The tsunami in the ocean was caused by an earthquake。
10. [answer]c
[dissect] deep-sea hydrothermal vents in the oceans are mineral concentrations in the deep sea, option c。
Ii. Multi-selection topics (5 in total)
11. Abc
[assuring] the marine ecosystem consists of marine life, the marine environment and marine sediments, while marine climate is an external factor that affects marine ecosystems。
12. Abcd
[disarm] the exploitation of marine resources may lead to pollution of seawater, damage to seabed ecosystems, overfishing of marine living resources and ocean acidification, so the abcd is selected。
13. Abcd
The main sources of [decomposition] marine pollution include industrial wastewater discharges, pesticide fertilizer loss, household sewage discharges and oil spills at sea。
14. Abcd
] marine organisms are classified on the basis of external patterns, internal structures, reproductive patterns and lifestyle, and are therefore selected as abcd。
15. Abcd
[discussed] the types of ocean energy include water temperature differentials, wave energy, current energy and ocean tidal energy, so select abc。
Iii. Filling out of the question (5 in total)
16. Original ocean
[disarmament] that the original ocean is rich in organic matter and provides the necessary conditions for the origin of life, so that life on earth originates in the original ocean。
17. [answer] coral
[disarmament] coral reefs are formed by the accumulation of skeletons and lime casings of coral organisms and form an important part of marine ecosystems。
18. [the answer] atmospheric precipitation and river belts enter
[the resolution of] salt in the oceans is derived mainly from atmospheric precipitation and dissolved salt brought in by rivers, in addition to the contribution of submarine volcanic eruptions。
19. The moon, the sun
[the resolution of] the tidal phenomenon in the oceans is caused by the combined gravity of the moon and the sun, which is the result of the interaction between the earth and the moon and the sun。
20. Mariana trench, 11,000 meters
The mariana trench is the deepest known marine area on earth, the deepest of which is known as the challenger deep, reaching 11,000 metres。
Iv. Questions of judgement (5 in total)
21. Wrong
While the oceans account for 71 per cent of the earth's surface area, they contain water that is salty and cannot be used for direct drinking and are therefore not the largest freshwater resource。
22. Error
[the resolution] coral reefs have a variety of colours, not only red, but also white, brown, green and so on, depending on the type of coral。
23. Correct
[disarmament] tropical regions are rich in living conditions with sufficient light and appropriate temperatures, and therefore have the highest biodiversity in the tropics。
24. Correct
[disarmament] tsunamis are usually caused by seafloor earthquakes, which generate energy that leads to changes in seafloor topography, thus triggering large-scale seawater fluctuations。
25. [answer] error
[decomposition] oil resources in the ocean are diverse in colour, which can be black, brown, yellow, etc., and colour depends on the composition and source of oil。
V. Brief answers (5 in total)
26. [the answer] plankton in the oceans is the primary producer in the marine ecosystem, which transforms inorganic matter into organic matter through photocosm, providing an energy base for the entire marine ecosystem。
[disarmament] plankton is the foundation of the marine food chain, which not only provides food to other marine organisms, but also produces oxygen through photosynthesis, which is important for marine ecosystems。
27. [the answer] global warming leads to higher seawater temperatures, rising sea levels, changes in acidity and increased extreme weather events, all of which have serious impacts on marine ecosystems。
[the resolution] increases in the temperature of the sea water will affect the growth and reproduction of marine life, sea level rise will erode coastlines, changes in acidity will damage coral reefs and an increase in extreme weather events will disrupt the ecological balance of the oceans。
28. [the answer] marine oil spills can pollute seawater, affect the breathing, reproduction and survival of marine life and have long-term negative impacts on marine ecosystems。
[disarm] oil spills cover the skin of marine organisms, hinder their breathing and affect their feeding and reproduction. In addition, oil spills can destroy the habitat of marine life and lead to a decline in biodiversity。
29. [the answer] the role of marine protected areas is to protect marine biodiversity and maintain the ecological balance of the oceans while providing the basis for scientific research and promoting the sustainable use of marine resources。
By limiting human activities and protecting key species and sensitive ecosystems, marine protected areas contribute to the restoration and maintenance of the health of marine ecosystems and the sustainable use of marine resources。
30. [the answer] ocean acidification refers to acidification caused by seawater uptake of carbon dioxide due to increased atmospheric concentrations of carbon dioxide. Its impacts on marine ecosystems include the dissolution of coral reefs, the formation of bones and shells that affect marine life。
[disassesing] ocean acidification reduces the ph of seawater, leading to the dissolution of calcium carbonate components in coral reefs and affecting their survival. At the same time, acidification can affect calcification processes in shellfish and other marine organisms, with wide-ranging impacts on the entire marine ecosystem。
