Practise Atmosphere MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Study Atmosphere through multiple-choice questions in Everyday Science. This subtopic contains 291 practice questions. Read the wording carefully, compare the options and attempt an answer before checking the solution in learning mode.
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دھند کا سبب کیا ہے؟
Answer: Air pollution
Explanation Smog is formed by mixing air with pollutants and exhaust gases resulting from human activities Main Causes of Smog: 1. Using Coal as a Fuel · 2. Vehicular and Industrial Emissions · 3. Overpopulation & Excessive Consumption · 4. Excessive Waste Production
فضائی تہہ جس میں زیادہ تر گیسیں موجود ہوتی ہیں؟
Answer: Troposphere
Explanation The troposphere is the atmospheric layer that contains most of the atmosphere's gases. This lowest layer of the atmosphere, where all weather occurs, contains approximately 75% of the total mass of the atmosphere and virtually all of its water vapor. Nitrogen (about 78%) and oxygen (about 21%)
Answer: Hydrophyte
Explanation Plants that live in water and adapt to their environment are known as hydrophytes .
Answer: 0°
Explanation The equator is the imaginary line that divides the Earth into the Northern Hemisphere and Southern Hemisphere . It is located at 0° latitude because it is the reference point for measuring latitude. Longitude , on the other hand, measures east-west positions and ranges from 0° to 180°.
مندرجہ ذیل میں سے کون سی گیس ہوا سے ہلکی ہے؟
Answer: Hydrogen
Explanation Hydrogen and helium are the two lightest gases, both significantly lighter than air. Hydrogen: Considered the lightest gas. Helium: Also lighter than air, but twice as heavy as hydrogen. Air: Has a higher molecular weight than both hydrogen and helium.
فوٹو سنتھیس ایک کیمیائی عمل ہے جو پودوں کے پتوں میں ہوتا ہے۔ لیکن اس کے لیے فضا سے ایک خاص گیس، ابیوٹک جزو کی ضرورت ہوتی ہے۔ یہ مادہ کیا ہے؟
Answer: Carbon Dioxide
Explanation Carbon dioxide (CO2) is the gas from the atmosphere that plants absorb through their leaves. It use as a reactant in photosynthesis, combining it with water and light energy to produce glucose and oxygen.
مندرجہ ذیل ایک ماحولیاتی نظام کے ابیوٹک حصے کی ایک مثال ہے؟
Answer: Minerals
Explanation Minerals are an example of an abiotic (non-living) component of an ecosystem . Abiotic factors are the physical and chemical elements that make up an ecosystem. Including water, air, soil, sunlight , temperature, and minerals.
آلودگی کی سب سے خطرناک قسم ___ ہے؟
Answer: Air Pollution
Explanation Air pollution is actually considered the most dangerous type of pollution. According to the World Health Organization (WHO) , air pollution is responsible for an estimated 7 million premature deaths worldwide each year, mainly due to heart disease, stroke, and lung cancer.
فضا کی کون سی تہہ زمین کی سطح پر ریڈیو لہروں کو منعکس کرتی ہے؟
Answer: lonosphere
Explanation Extending from about 80 to 300 km (about 50 to 185 miles) in altitude , the ionosphere is an electrically conducting region capable of reflecting radio signals back to Earth. … this altitude upward defines the ionosphere. ND17-7-2023
بنیادی طور پر ، ماحولیاتی آلودگی _____ کی ہے؟
Answer: Three types
Explanation The three types of pollution are: Air Pollution : Harmful substances released into the air, like carbon monoxide and sulfur dioxide. Water Pollution : Contamination of water sources with pollutants such as industrial waste and sewage. Land Pollution : Degradation of land through activities like deforestation and improper waste disposal.
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