یاد رکھیں گیس پیپر کو پی ڈی ایف میں ڈنلوڈ کرنے
سےبہترہے، یہاں ویب سائیٹ سے وضاحت کے ساتھ پڑھیں۔ کیونکہ ان سوالات کے
متعلق ہی بار بار سوالات بعض اوقات پیپرمیں پوچھے جاتے ہیں اوراس کے علاوہ
ویب سائیٹ پر آئے روز پیپرز کے مطابق نیو سوالات بھی ایڈ کیے جاتے ہیں ۔ اس
لیے وضاحت کے ساتھ پڑھنے سے اپکی تیاری انشا اللہ اچھی ہو جائے گی۔
Dry air from Earth's atmosphere contains 78.08% nitrogen, 20.95% oxygen, 0.93% argon, 0.04% carbon dioxide, and traces of hydrogen, helium, and other "noble" gases (by volume), but generally a variable amount of water vapor is also present, on average about 1% at sea level.
A single gene mutation results in resistance to DDT and pyrethroids, a class of pesticides used in bed nets. According to a new study in the journal Geno Mosquitoes (Anopheles funestus), Geno Mosquitoes (Anopheles funestus) is a malaria vector, and most strategies for controlling disease epidemics focus on controlling mosquito populations with pesticides. I'm guessing. The spread of resistance genes can delay efforts to prevent disease.
Fluorescent lamps consist of glass tubes filled with a mixture of argon and mercury vapor. The metal electrodes on both ends are coated with an alkaline earth oxide that easily donates electrons.
Hydroponics is a sort of horticulture and a subset of hydroculture which entails growing flowers,
typically vegetation, with out soil, by way of using mineral nutrient answers in an aqueous solvent. Terrestrial or aquatic flora might also grow with their roots uncovered to the nutritious liquid, or, further, the roots may be bodily supported via an inert medium inclusive of perlite, gravely or different substrates.
not with standing inert media, roots can motive modifications of the rhizosphere pH and root exudates can have an effect on rhizosphere biology and physiological balance of the nutrient solution with the aid of secondary metabolites.
