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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
الیکٹرک ڈیوائس جو اے سی کو ڈی سی میں تبدیل کرتی ہے _____ کہلاتا ہے؟
Battery
Rectifier
Both
None
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Explanation
A rectifier is an electrical device that converts alternating current (AC),
which periodically reverses direction, to direct current (DC), which flows in only one direction.
Perfect circle
Perfect sphere
Imperfect circle
None
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Explanation
Earth is the fifth-largest planet in the solar system. Its diameter is about 8,000 miles. And Earth is the third-closest planet to the sun
4
6
10
None
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Grouped data
Un grouped data
Qualitative data
Quantitative data
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Explanation
Data is facts and statistics collected together for reference or analysis.
125
1/4
1/8
1/100
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Explanation
0.125 is the same as 125/1000. This is because we have to remove the decimal point before creating a fraction. So 0.125 times by 1000 is 125 and at this point the decimal point has been removed.
125/100=1/8
0.1%
10%
100%
50%
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Explanation
Converting from a decimal to a percentage is done by multiplying the decimal value by 100 and adding %.
5
1
3
-1
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Explanation
Coefficient is a number used to multiply a variable.
کلوروپلاسٹ کس کا اہم آرگنیل ھے
Virus
Bacteria
Plant cell
None
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Explanation
Chloroplasts are found in all higher plants. It is oval or biconvex, found within the mesophyll of the plant cell.
The size of the chloroplast usually varies between 4-6 µm in diameter and 1-3 µm in thickness.
Water
Computer
Air
Ozone Layer
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Explanation
The ozone layer is a thin part of the Earth's atmosphere that absorbs almost all of the sun's harmful ultraviolet light. "Ozone holes" are popular names for areas of damage to the ozone layer.
Virus
Bacteria
Plant cell
Animal cell
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Explanation
Centrioles are paired barrel-shaped organelles located in the cytoplasm of animal cells near the nuclear envelope.