Question : The core of the Earth is made up of___________.

Option 1: cobalt and nickel

Option 2: iron and cobalt

Option 3: nickel and magnesium

Option 4: nickel and iron

Question : Bronze is an alloy of

Option 1: Copper and Tin

Option 2: Copper and Zinc

Option 3: Copper and Iron

Option 4: Iron and Nickel

Question : The most abundant metal in the Earth's crust is

Option 1: zinc

Option 2: copper

Option 3: Aluminium

Option 4: Iron

Question : German silver is an alloy of

Option 1: Copper, nickel and silver

Option 2: Silver ,copper and aluminium

Option 3: Zinc copper and nickel

Option 4: Zinc silver and copper

Question : Earth's core is mainly made up of _____________.

Option 1: nickel and copper

Option 2: nickel and alumina

Option 3: nickel and iron

Option 4: nickel and magnesium