Melting Point of Tungsten is?
Melting Point of Tungsten is?
A. 1000 C
B. 2000 C
C. 3000 C
D. 4000 C
A. 1000 C
B. 2000 C
C. 3000 C
D. 4000 C
A. 35 °C
B. 37 °C
C. 42 °C
D. 54 °C
A. lactic acid
B. citric acid
C. acetic acid
D. carbonic acid
An element that does not occur in nature but can be produced artificially is__________?
A. Plutonium
B. Uranium
C. Radium
D. Thorium
		A. Sound waves
B. Time
C. Color contrast
D. Water waves
The purpose of a chronometer is to measure accurately the time of a known fixed location, for example Greenwich Mean Time (GMT).