- Rains
- Reigns
- Reins
- Ranes
- c
-
گھوڑے والے نے گھوڑے کی لگام کھینچ لی۔
- Worried
- Anxious
- Agitated
- Nervous
- d
-
جب وہ اسٹیج پر گیا تو اسے گھبراہٹ کا احساس ہوا۔
- Sodium Chloride
- Ammonia Acid
- Sodium Potassium
- None of these
- a
-
NaCl is the Chemical Formula of Sodium Chloride.
- Sugar
- Platelets
- Red Blood Cells
- White Blood Cells
- d
-
WBC’s make more healthy and strong human immune system.
- Plastic
- Copper
- Granite
- None of these
- a
-
In 1862, Alexander Parkes introduced the world's first- ever man-made plastic,
- Vitamin A
- Vitamin B
- Vitamin C
- Vitamin D
- d
-
Beef Liver, Cheese, Egg Folks, Fishes are best sources of Vitamin D.
- Oxygen
- Water Vapors
- Carbon Dioxide
- None of these
- b
-
The instrument that is used to measure humidity in air is called Hygrometer.
Hygrometer was invented by Leonardo De Vinci in 1400s.
- Carbon Monoxide
- Nitrogen
- Hydrogen
- Ammonia
- a
-
The chemical formula of Carbon Monoxide is CO.
- Greenhouse Gases
- Ultraviolet Rays
- CFCs
- Carbon Dioxide
- b
-
The Chemical Formula of Ozone is O3.
- Lack of Oxygen
- Low temperature
- Low atmospheric pressure
- High atmospheric pressure
- c