Atmosphere MCQs - Everyday Science Practice | PakExamPoint
Practise Atmosphere MCQs in Everyday Science. Attempt multiple-choice questions, check answers and revise related subtopics.
Atmosphere MCQs and revision practice
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.
Use these Atmosphere MCQs to identify the facts, rules or methods you need to revise. Where an explanation is available, work through it and write down why your chosen option was correct or incorrect. Revisit difficult questions after reviewing your notes, then use exam mode for timed practice.
Explanation The s un generates electricity from a manner known as nuclear fusion . at some point of nuclear fusion, the high stress and temperature in the solar's middle c ause nuclei to split from their electrons. Hydrogen nuclei fuse to shape one helium atom. sun power is electricity that comes from the solar. every day the solar radiates, or sends out, an vast amount of electricity. The sun radiates extra electricity in a single 2nd than human beings have used on the grounds that the start of time! It comes from in the sun itself. Like different stars, the solar is a huge gas ball made up by and large of hydrogen and helium. The solar generates energy in its middle in a system called nuclear fusion. at some point of nuclear fusion, the solar's extraordinarily high strain and extreme temperature reason hydrogen atoms to return apart and their nuclei (the principal cores of the atoms) to fuse or combine. 4 hydrogen nuclei fuse to become one helium atom. however the helium atom weighs less than the four nuclei that blended to shape it. some depend is lost at some point of nuclear fusion. The misplaced remember is emitted into area as radiant power.
خلائی جہاز میں ایک خلاباز کو، آسمان کیسا دکھائی دیتا ہے۔
A. Blue
B. Red
C. Dark
D. White
Check answer and explanation
Answer: Dark
Explanation Answer: It looks dark to astronauts. On the earth, the blue sky can be seen due to the existence of the atmosphere. The atmosphere blocks the rays of the sun and you can see the color of the sky. In the universe, because there is no atmosphere, the rays reach the astronomer's eyes without refraction and appear dark.
مقامی ماحولیاتی مسائل سے نمٹنے کا بہترین طریقہ کیا ہے۔
A. All
B. use the local administrative machinery
C. provide environmental education to the local people and create awareness
D. leave it to the local public to decide
Check answer and explanation
Answer: provide environmental education to the local people and create awareness
Explanation The most effective way to address local environmental problems is a multi-pronged approac h that includes: Reducing consumption Promoting reuse Recycling Supporting sustainable practices. This involves individual actions, community initiatives, and advocating for policy changes to protect the environment.
D. Are unaffected by the moon's gravitational pull
Check answer and explanation
Answer: Often strike during clear weather
Explanation Waves typically don't " strike " during clear weathe r They are a continuous natural phenomenon that occurs regardless of weather conditions. However, they might be more noticeable during clear weather for several reasons: Visibility Calm Seas Recreational Activities Safety Concerns
Explanation Dispersion occurs when white light passes through water droplets in the atmosphere, causing the light to spread out into its component colors (spectrum). Each color of light bends by a different amount due to their different wavelengths , resulting in the formation of a rainbow.
Explanation Ozone (O₃) is mainly found in the Stratosphere , called the ozone layer . It absorbs harmful ultraviolet (UV) radiation from the sun, protecting life on Earth . Located roughly 15–35 km above the Earth’s surface. Last verified on 17-01-2026
کون سی گیس زمین پر زندگی کے لیے نقصان دہ بھی ہے اور فائدہ مند بھی؟
A. None of these
B. Nitric acid
C. Oxygen
D. Ozone
Check answer and explanation
Answer: Ozone
Explanation Ozone (O₃) is both beneficial and harmful depending on its location. In the Ozone Layer , it protects life by blocking UV rays . At ground level, it becomes a pollutant harmful to lungs and plants . Thus, it has a dual role in Earth’s atmosphere. Last verified on 02-05-2026
Explanation The Earth's atmosphere is divided into five main layers: Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere. Each layer has unique characteristics such as temperature, density, and composition.
Found a mistake? Use “Report correction” in the practice tool or contact us with the question and a supporting source.