What are the essential nutrients that are necessary for the growth of plants and algae in aquatic systems?
Calcium and magnesium
Sodium and potassium
Carbon and oxygen
Nitrogen and phosphorus
Where does energy begin to flow in the aquatic ecosystem?
From producers such as algae and plants
From zooplankton
From predatory fish
From herbivorous fish
Which of the following is considered a characteristic of salt-tolerant organisms?
Can only live in fresh water
Live only in salt water
Does not need osmotic adaptation
Can live in a wide range of salinity concentrations
One of the importance of maintaining ecological balance is that it helps to...
Reducing biodiversity
Maintaining the stability and continuity of the ecosystem
Increasing commercial fishing opportunities
Increasing water temperature
The negative effects of overfishing are...
Increasing biodiversity
Causing algae blooms
Reducing prey numbers
Enhancing the health of marine organisms
Which of the following factors has the greatest effect on the distribution of fish in the oceans?
Water color
Food availability
Water depth
Surface wind speed
The natural flow of energy in the aquatic ecosystem affects...
Reduced biodiversity
Regulated the numbers of organisms at each level of the food chain
Increased consumption of food resources
Increased water pollution
The vapor pressure of water ... when an amount of table salt is dissolved in it
Doubles
Not affected
Decreases
Increases
Which of the following properties of a liquid does not affect its vapor pressure?
Mass of liquid
Temperature
Strength of attraction between molecules
Type of molecules
The collective properties of water depend on the number of ... and do not depend on its type
Oxygen atoms
Solvent particles
Covalent bonds
Solute particles
Carrying ... organisms to different depths of water or to the surface of the water
Coral reefs
Density
Water currents
Particles
A process occurs ... when the vapor pressure equals the atmospheric pressure
Condensation
Freezing
Evaporation
Sublimation
The basic concept of ecological balance may express..
Destruction of natural habitats
Unrestricted consumption of resources
Preservation of biodiversity through food relations
Reducing the number of living organisms
The physical factor that the food chain needs and comes from outside the planet Earth is..
Light
Soil salts
Water
CO2
Predatory fish contribute to maintaining the ecological balance in aquatic systems by ..
Purifying water from pollutants
Reducing the growth of aquatic plants
Increasing the amount of nutrients
Controlling the number of prey
Which of the following factors affects the vapor pressure of the liquid?
Volume of the container
Shape of the container
Color of the liquid
Vapor pressure in solutions ... Vapor pressure in pure water
Equal to
Less than
Half
Greater than
Which of the following statements is true about the vapor pressure of very dilute solutions?
Directly proportional to the concentration of the solute
Not affected by the concentration of the solute
Proportional to the square of the concentration of the solute
Inversely proportional to the concentration of the solute
The concept of sustainable development in the environmental context refers to...
Meeting the needs of the present generation without compromising the capabilities of the Future generations
Excessive consumption of resources
Ignoring environmental issues
The main source of energy in the food web is..
Insects
Plants
The sun
Nutrients
What is the main effect of osmotic adaptation on organisms in aquatic environments?
Determines the age of living organisms
Determines the size of organisms
Affects the color of organisms
Affects the balance of water and salts in their bodies
Predatory fish help maintain the balance of coral reefs by...
Increasing coral reef growth
Feeding on coral reefs
Providing nutrients to coral reefs
Controlling the numbers of small organisms such as sea urchins
Which of the following is considered an adaptation that helps fish live in salt water?
Increased urine production
Increased salt absorption
Reduced water intake
Reduced food intake
What is the main factor that affects the distribution of living organisms in aquatic environments?
Osmotic adaptation
The primary function of producers in an aquatic ecosystem is...
Purifying water
Consuming other organisms
Regulating water temperature
Performing photosynthesis
When the temperature of pure water increases ... the vapor pressure
Remains constant
Is not regular
What are the possible consequences of not maintaining ecological balance in aquatic systems?
Improving fish productivity
Enhancing biodiversity
Disruption of food chains
Increasing environmental prosperity
Increasing the concentration of dissolved substances in water increases ... Water
Pressure
Color
Volume
The most effective way for human participation in environmental policies is
Participating in community dialogues
Overfishing
Reducing environmental awareness
Ignoring government policies
Human activities negatively affect the flow of energy in the aquatic ecosystem through ..
Enhancing the flow of energy
Increasing the number of productive organisms
Increasing the efficiency of photosynthesis
Excessive consumption of small fish by predatory fish leads to... Zooplankton
No effect on
Increased numbers
Decreased numbers
Complete disappearance of zooplankton
Which of the following factors is a major cause of the variation in water quality in the oceans..
Use of pesticides
Biodiversity
Photosynthesis
All of the following control the movement of whales in the oceans except
Concentration of salts in the water
Water volume
Water movement
Water density
Which of the following factors does not affect the amount of decrease in vapor pressure Solution?
Type of solute
Concentration of solute
Volume of solution container
The vapor pressure of water... with height above sea level
The likely result of an imbalance in nutrient levels in the aquatic system is...
Improving water quality
Disrupting the ecosystem
Decreasing water temperature
When the external pressure on the surface of the liquid increases, the vapor pressure...
Not regular
The concentrations of dissolved substances in water affect the following except ..
Color of living organisms
Distribution of living organisms
Properties of matter
The potential impact of increasing the number of predatory fish on the aquatic ecosystem is..
Better balance in the food chain
Decrease in the number of algae
Increased biodiversity
Unbalanced increase in the number of small fish
Which of the following factors is considered an essential element in sustainable development?
Lack of interest in the environment
Development of clean technology
Increased consumption of natural resources