Which of the following is responsible for the largest amount of oxygen on earth?

A. Peat bogs
B. Algae
C. Trees
D. None of these

P-waves is a term associated with__________

A. Earthquakes
B. Oceans
C. Wind
D. Rivers

Chemically finger nails are made up of ____________?

A. Carbohydrate
B. Fats
C. protein
D. Starch

“COTTON” is grown on ___________?

A. Black soil
B. Red Soil
C. Regur Soil
D. Alluvial Sea

Very small time intervals are accurately measured by the___________?

A. Pabsars
B. White dwarfs
C. Atomic Clocks
D. None of these

Who invented the Hot Air Balloon?

A. Davy
B. Montgolfier
C. Edison
D. Jarvik

Which of the following is a ferromagnetic material ? 

A. Tungsten
B. Aluminium
C. Copper
D. Nickel

What are the primary colors of Light?

A. White, Black, Blue
B. Red, Yellow, Blue
C. Red, Orange, Blue
D. Red, Green, Blue