GENERAL SCIENCE CLASS 7 MCQS
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
نظام انہضام میں غذائی نالی کا کام ____ ہے؟
Absorb nutrients from food
Mix food with digestive enzymes
Pass the food to the Stomach
Store food temporarily
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Explanation
The oesophagus is a muscular tube that connects the pharynx (throat) to the stomach. Its main function is to transport food from the pharynx to the stomach through peristalsis (wave-like muscle contractions).
ایک نوری سال کا تعلق ____ سے ہے؟
Time
Distance
Frequency
None of these
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Explanation
Light year refers to speed of light expressed in miles per year
(it is about ten trillion kilometers or six trillion miles ).
Light year is a unit of distance .
Light Year: the distance that light can travel in one year.
The distance light travels in one year is known as the light year.
1 light year is equal to 9.5 x 10^12 km
کھانے کا سلسلہ ہمیشہ ____ سے شروع ہوتا ہے؟
Producers
Consumers
Decomposers
Predators
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Explanation
A food chain always begins with producers .
It usually green plants or algae , that make their own food through photosynthesis .
They provide the initial energy source for all other organisms ( consumers and decomposers ) in the food chain.
ٹھوس میں حرارت کی منتقلی کس موڈ میں ہے؟
Convection
Radiation
Conduction
None
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Explanation
In solids, heat transfer occurs primarily through conduction , where vibrations and collisions of particles (atoms or molecules) transfer energy from one point to another.
روشنی کے بنیادی رنگ _____ ہیں؟
2
3
4
5
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Explanation
Red (R) Green (G) and blue (B) colors are known as primary colors of light. Because of mixing these three colors we are able to make all possible colors. Key Point
The primary colors of Pigment is :
ایک ایٹم میں _____ کی ایک ہی تعداد ہے؟
Electrons and Neutrons
Protons and Neutrons
Electrons and Protons
Neutrons and Molecules
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Explanation
An atom typically has an equal number of electrons and protons.They are equal in number to the atomic number (Z) of the element. This number is unique to each element and determines the properties of the element.
حرارت کی منتقلی کا ایک طریقہ جو سیال کی بڑے پیمانے پر حرکت سے ہوتا ہے ___ کہلاتا ہے؟
Radiation
Convection
Conduction
None
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Explanation
Convection is the mode of heat transfer that occurs when a fluid (such as a gas or liquid) moves and carries heat energy from one location to another. This transfer of heat occurs due to the bulk motion of the fluid.
وقت کی اکائی سے طے شدہ فاصلہ کیا کہلاتا ہے؟
Force
Speed
Momentum
None
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Explanation
The distance traveled by a body in unit time i s called the speed of the body.
S.I. unit of speed is meter per second (ms−1).
ND11623
متواتر جدول میں، قطار کو ____ سمجھا جاتا ہے؟
Periods
Groups
Zigzag
Diagonal
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Explanation
In the periodic table , a rows is considered to be a periods . Periods are the horizontal rows of elements in the periodic table.
ای۔سی۔جی کا استعمال _____ کی بیماری کی تشخیص کے لیے کیا جاتا ہے؟
Brain
Heart
Liver
Kidneys
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Explanation
ECG (Electrocardiogram) is a test used to measure the electrical activity of the heart . It is commonly used for the diagnosis of heart-related ailments, such as:
Arrhythmias (irregular heart rhythms) Coronary artery disease Cardiac arrests Heart failure
