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التقدم بالاختبار سؤال 1 من 40

What are fluids?

Materials that have a fixed volume and shape

Materials that are characterized by their ability to flow

Materials that have only an unstable shape

Materials that have only a fixed volume

سؤال 1

الدرجة 1.00

A boat traveling at a speed of 50 m/s for a distance of 100 m, the amount of pressure exerted on it is equal to …atm

100

125

سؤال 2

الدرجة 1.00

It helps... fish to float and balance in the water

Large gills

Lipoproteins

Cartilaginous skeleton

Swim bladder

سؤال 3

الدرجة 1.00

What are the adaptations that help fish move upward in the water?

Swim bladders

Large liver

Fins

All of the above

سؤال 4

الدرجة 1.00

The level of the connected seas and oceans is at the same horizontal level, due to the equality of

The depth of the water

The volume of the water

The area of the water

All of the above

سؤال 5

الدرجة 1.00

What is the unit used to measure pressure?

Joule

Kg/m³

N/m²

M/s²

سؤال 6

الدرجة 1.00

When solar radiation moves from space to the Earth’s atmosphere, it .....

Most of it reaches the Earth’s surface

It is completely scattered in the atmosphere

It reaches the Earth’s surface completely

It is completely absorbed in the atmosphere

سؤال 7

الدرجة 1.00

Which of the following organisms is exposed to less water pressure?

Deep-sea organisms

Organisms that need more light

Organisms that live at medium depths

Surface organisms

سؤال 8

الدرجة 1.00

Which of the following is not a characteristic of gaseous materials?

Easily compressible

Does not have a fixed volume

Resists compression

Occupies any space in which they are found

سؤال 9

الدرجة 1.00

The ocean current that carries warm water from the equator towards the North Atlantic Ocean ..

Solar radiation

Gulf Stream

Visible light

Photosynthesis

سؤال 10

الدرجة 1.00

Which of the following regions of the electromagnetic spectrum has waves with shorter wavelengths ...

Visible light

Gamma rays

Radio waves

X-rays

سؤال 11

الدرجة 1.00

The pressure of the liquid in communicating vessels does not depend on

The shape of the vessels

The height of the liquid

The density of the liquid

The acceleration of gravity

سؤال 12

الدرجة 1.00

If you know that Barra coda and cod cannot exist together in the ocean at the same latitude because each type of them .....

Has Adaptations to a certain temperature

Has adaptations to a certain light intensity

Predatory fish

Lives at different depths in the ocean

سؤال 13

الدرجة 1.00

The basic condition for the abundance of plants in an aquatic environment is ....

Low carbon dioxide

High salinity

Availability of fresh water

Availability of an adequate amount of light to complete the process of photosynthesis

سؤال 14

الدرجة 1.00

The opposite figure shows two points X, y at two different depths in the ocean water. If the energy of visible light at point x equals E, then the energy of visible light at point y equals approximately …..

1/2E

1/3E

1/4E

سؤال 15

الدرجة 1.00

The pressure exerted by a man on the surface of the earth is greater when

He lies on the ground

He stands on the toes of one foot on the ground

He stands with one foot on the ground

He stands with both feet on the ground

سؤال 16

الدرجة 1.00

photosynthesis important for maintaining the ecological balance in the ocean

True

False

سؤال 17

الدرجة 1.00

The opposite figure represents three regions x, y, z in ocean water. Which of these regions is the most suitable for the presence of autotrophic algae?

Area z

The three regions are of equal load

Area x

Area y

سؤال 18

الدرجة 1.00

Evaporating water appears blue because ....

Water absorbs blue light wavelengths first

Blue light wavelengths penetrate to greater depths compared to other colors

The surface of the water reflects blue light wavelengths

Water does not absorb blue light wavelengths

سؤال 19

الدرجة 1.00

Of the marine organisms that live in cold regions ....

Barra coda

Coral reefs

Tuna

Cod

سؤال 20

الدرجة 1.00

It is considered...a more flexible and lighter tissue, which gives fish high flexibility

Fat

Cartilage

Proteins

Bones

سؤال 21

الدرجة 1.00

What is the importance of lipoproteins in the cell membranes of marine organisms?

Does not affect the membrane

Reduce the area of the membrane

Increase the volume of the membrane

Increase the flexibility of the membrane

سؤال 22

الدرجة 1.00

Which of the following quantities decreases in summer with increasing depth in the Red Sea waters? ...

Water density and temperature

Water density and pressure

Water temperature and light intensity through it

Water temperature and pressure

سؤال 23

الدرجة 1.00

All of the following are units of pressure except …

Bar

N/m2

سؤال 24

الدرجة 1.00

Which marine organisms can withstand higher pressure?

Surface organisms

Deep-sea organisms

All are equal

Organisms that live at medium depths

سؤال 25

الدرجة 1.00

Solar radiation energy can be converted into .....

Electrical energy

Thermal energy

All of the above

سؤال 26

الدرجة 1.00

The opposite figure represents four regions of the electromagnetic spectrum. Which of the following represents regions A and B of the spectrum, respectively?

Region A

Visible light

Ultraviolet rays

Region B

X-rays - infrared rays

Infrared rays - X-rays

Infrared rays - micrometer rays

X-rays - gamma rays

سؤال 27

الدرجة 1.00

Of the fish that can be found in the Atlantic Ocean at the equator ...

Barra coda and tuna

Tuna and cod

Barra coda

Cod only

سؤال 28

الدرجة 1.00

Sharks are...

Mammals

Jawless

Cartilaginous fish

Bony fish

سؤال 29

الدرجة 1.00

The opposite figure represents solar radiation at sea level. The ratio between the intensities of the two wavelengths is 1500 nm / 500 nm, respectively, of solar radiation at sea level....

Greater than one

Answer cannot be determined

Equal to one

Less than one

سؤال 30

الدرجة 1.00

In which of the following climatic seasons does the rate of decline in the number of marine organisms in the polar regions increase ....

Summer

Winter

Autumn

Spring

سؤال 31

الدرجة 1.00

How does pressure affect a point inside a liquid?

In all directions equally

From above only

From below only

In opposite directions

سؤال 32

الدرجة 1.00

Tilapia has... that helps it move between depths

Air bladder

Large lungs

Small gills

Liver rich in oils

سؤال 33

الدرجة 1.00

A process carried out by aquatic plants to convert solar energy into chemical energy used in building organic materials .....

The transpiration process

The photosynthesis process

The diffusion process

The demolition process

سؤال 34

الدرجة 1.00

The opposite figure shows two different regions of ocean water, a shallow coastal water area A and an open water area B. What do the colors of regions A and B look like…..

The color of region A ..........The color of region B .................

Tends to green/Tends to blue

Tends to red/Tends to green

Tends to blue /Tends to red

Tends to blue/Tends to green

سؤال 35

الدرجة 1.00

Solar radiation that reaches sea level without being scattered ....

Direct solar radiation

Visible light

Chemical energy

Gulf Stream

سؤال 36

الدرجة 1.00

When solar radiation passes through the surface layer in ocean water…. • Absorbs long wavelengths of visible light first

Absorbs short wavelengths of visible light first

Completely absorbs all wavelengths of visible light together

Does not absorb any of the wavelengths of visible light

Absorbs long wavelengths of visible light first

سؤال 37

الدرجة 1.00

Which of the following is not a fluid?

Ice

Oil

Atmospheric air

Mercury

سؤال 38

الدرجة 1.00

Bony fish...

Tilapia

Ray

Shark

Whale

سؤال 39

الدرجة 1.00

A fish is subjected to a pressure of 8 atm, so it is found at a depth equal to ..m

سؤال 40

الدرجة 1.00

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