30°
450°
60°
75°
90°
Correct answer is E
No explanation has been provided for this answer.
Which to the following is NOT a fundamental unit?
Ampere
Kelvin
Kilogramme
Newton
Second
Correct answer is D
No explanation has been provided for this answer.
16.64eV
12.00eV
10.40eV
8.80eV
6.50eV
Correct answer is D
No explanation has been provided for this answer.
When very hot water is poured into a thin-walled glass container, it is less likely to break because
all parts of the container got heated-uniformly
glass can withstand a very high temperature
the molecules of glass are too far apart to cause breakages of the container
the outer part of the container is cooler than the inner part
thin glass does not expand fast
Correct answer is A
No explanation has been provided for this answer.
Which of the following is NOT a major role of OPEC in production, and marketing of petroleum?
Coordinating and unifying petroleum policies of member countries
Ensuring efficient and regular supply of oil to the two market
Raising the revenue of member countries from oil through price increase
Refining of petroleum products in member countries
Stabilizing oil prices putting a production ceiling
Correct answer is D
No explanation has been provided for this answer.