An important ore of chromium is ?
A. Argon
B. Chromite
C. Mirage
D. Diamond
A. Argon
B. Chromite
C. Mirage
D. Diamond
In Space, our Body_______?
A. Gains Weight
B. Loses Weight
C. No Change
D. Little Change
		A. Haematology
B. Speleology
C. Oology
D. Oneriology
		A. Troposphere
B. Stratosphere
C. Ozone layer
D. Ionosphere
Ununoctium is the heaviest element, but it is man-made. The heaviest naturally-occurring element is uranium (atomic number 92, atomic weight 238.0289).
A. Sit has high resistance
B. the body is earthed
C. it does not form a closed path for the flow of current
D. its feet are good insulators
The lightest or least dense metal that is a pure element is lithium, which has a density of 0.534 g/cm3. This makes lithium nearly half as dense as water, so if lithium was not so reactive, a chunk of the metal would float on water.