اختبار إلكتروني

اختبار - علوم - متكاملة لغات - اولى ثانوي - الوحدة الاولى - ترم اول - نموذج 7

معلومات الاختبار

عدد الأسئلة

الدرجة الكلية

40.00

معدل النجاح

50.00%

المدة

30 دقيقة

اختبار علوم متكاملة لغات - اولى ثانوي - الوحدة الاولى - نموذج 7 -ترم اول - منهج مصري - اختبارات بصمة

استعراض أسئلة الاختبار (40 سؤالًا) — للقراءة فقط

هذه معاينة نصية للأسئلة للاطّلاع والمراجعة فقط. لخوض الاختبار تفاعليًّا مع تصحيح آلي ونتيجة فورية، اضغط زر «ابدأ الاختبار» أدناه.

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

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اختبار - علوم - متكاملة لغات - اولى ثانوي - الوحدة الاولى - ترم اول - نموذج 7

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