EVERYDAY SCIENCE
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چار آپشن میں سے کسی ایک پر کلک کرنے سے جواب سرخ ہو جائے گا۔
وٹامن کی کی کمی کا سبب کیا ہے؟
- Rickets
- Anemia
- Prolong bleeding / Blood clotting disorder
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Vitamin K is essential for the production of blood-clotting proteins.
- Its deficiency reduces the blood's ability to clot, causing prolonged bleeding.
- It may lead to easy bruising, nosebleeds and excessive bleeding from wounds.
- Vitamin K is found in green leafy vegetables such as spinach, kale and broccoli.
Last verified on 02-11-2026
کس وٹامن کی کمی سے اسکوروی ہوتی ہے، جس میں جلد، خون کی نالیوں اور دانتوں کے ٹشوز متاثر ہوتے ہیں؟
- Vitamin A
- Vitamin C
- Vitamin D
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Vitamin C deficiency → Scurvy
- Causes bleeding gums and poor wound healing.
- Vitamin C is important for collagen formation.
- Main sources: Citrus fruits, guava, tomatoes, and vegetables.
Last verified on 02-11-2026
ملیریا اور افریقی نیند کی بیماری کس قسم کی بیماریوں کی مثالیں ہیں؟
- Bacterial
- Fungal
- Protozoal
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Malaria is caused by Plasmodium, a protozoan parasite transmitted through the bite of an infected female Anopheles mosquito.
- African sleeping sickness (African trypanosomiasis) is caused by Trypanosoma brucei.
- It is transmitted to humans through the bite of an infected tsetse fly.
- Both diseases are caused by protozoan parasites.
Last verified on 02-11-2026
درج ذیل میں سے کون سی گیسیں تیزابی بارش کا سبب بنتی ہیں؟
- NO₂
- CO₂
- SO₂
- All of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Sulfur dioxide (SO₂) and nitrogen dioxide (NO₂) react with water and oxygen in the atmosphere to form sulfuric acid and nitric acid.
- These acids mix with rainwater and fall to the Earth as acid rain.
- Carbon dioxide (CO₂) can form weak carbonic acid in rainwater, but it is not considered a major cause of acid rain.
Last verified on 02-11-2026
پانی کے آلودہ ہونے کے عمل کو کیا کہتے ہیں؟
- Water pollution
- Air pollution
- Green house
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Water pollution occurs when harmful substances contaminate water bodies.
- Common pollutants include industrial waste, sewage, pesticides, plastics and chemicals.
- It makes water unsafe for drinking and harms aquatic organisms.
- Major sources include factories, agricultural runoff and untreated domestic wastewater.
Last verified on 02-11-2026
- Bacteria
- Virus
- Vibrio cholerae
- Both A and C
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
Last verified on 3-03-2026
اوزون کی تہہ کے خاتمے کا ذمہ دار کون سی گیس کا ایٹم ہے؟
- Nitrogen
- Carbon dioxide
- Chlorine
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Chlorine atoms destroy ozone molecules (O₃) through chemical reactions in the stratosphere.
- Chlorine is mainly released from chlorofluorocarbons (CFCs) when ultraviolet radiation breaks them down.
- One chlorine atom can destroy thousands of ozone molecules before being removed from the stratosphere.
- The Montreal Protocol (1987) was adopted to phase out ozone-depleting substances such as CFCs.
Last verified on 02-11-2026
آیوڈین کی کمی سے کون سی بیماری ہوتی ہے؟
- Imbalances in fluid volume in the vessels and tissues
- Goiter
- Tetnas
- Cancer
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Iodine deficiency causes goiter, an enlargement of the thyroid gland.
- Iodine is essential for the production of thyroid hormones.
- Severe iodine deficiency during pregnancy or early childhood can impair brain development.
Last verified on 07-09-2026
چھوئی موئی کا نباتاتی نام کیا ہے؟
- Mimosa Pudica
- Acacia Catechu
- Prosopis Glandulosa
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Mimosa pudica is commonly known as the touch-me-not or sensitive plant.
- Its leaves fold inward when touched or shaken.
- This response is called thigmonasty.
- It belongs to the family Fabaceae (legume family).
- It is native to Central and South America.
Last verified on 02-11-2026
بخار یا جسمانی درجہ حرارت میں اضافہ کس کے خلاف حفاظتی نظام کو متحرک کرنے میں مدد دیتا ہے؟
- Shivering
- Cold
- Pathogens
- None of these
اس سوال کو وضاحت کے ساتھ پڑھیں
Explanation
- Fever is a natural defence response of the immune system against infections.
- Increased body temperature can slow the growth of some pathogens, including bacteria and viruses.
- Fever also helps activate immune cells and supports the body's fight against infection.
- Normal human body temperature is approximately 37°C (98.6°F).
Last verified on 02-11-2026
