Which is the smallest bird in the world?

a) hummingbird

b) weebill

c) pardalote

d) none of these (more…)

Meteorology is the study of?

a) seasons

b) atmosphere

c) air and sound

d) winds and clouds (more…)

a) Iodine

b) Copper

c) Fluorine

d) Iron (more…)

a) White, Black, Blue

b) Red, Yellow, Blue

c) Red, Orange, Blue

d) Red, Green, Blue (more…)

a) Solid Oxygen

b) Solid Carbon Dioxide

c) Solid Hydrogen

d) Solid Nitrogen (more…)

a) Oxygen

b) Carbon

c) Hydrogen

d) Nitrogen (more…)