BSCIC Promotion Officer 2026
৭১টি প্রশ্ন · বিষয় অনুযায়ী সাজানো
সাধারণ বিজ্ঞান · ৫টি প্রশ্ন · পৃষ্ঠা ১/১
১. Which type of environmental pollution can mainly cause high blood pressure?
Air pollution
Water pollution
Noise pollution
Soil pollution
২. Which metal is found in the largest amount on the Earth's surface?
Copper
Zinc
Aluminium
Lead
৩. What are the shells of aquatic snails and clams made of?
Sulphate
Carbonate
Phosphate
Nitrate
৪. What is the main chemical component of paper?
Lignin
Hemicellulose
Cellulose
Resin
৫. What is the main structural component of the Earth?
Nirogen
Hydrogen
Carbon
Iron