1 BTU(British thermal unit) is equal to how many joules?
A. 955 joules
B. 990 joules
C. 1055 joules
D. 1211 joules
The horizontal rows of the periodic table are called ______?
A. Groups
B. Periods
C. Sets
D. Matrices
Who invented the battery?
A. Nicolas Carznot
B. Alessandro Volta
C. Michael Faraday
D. George Bessel
Which energy is changed by a loudspeaker into sound energy.
A. Chemical
B. Electrical
C. Light
D. Kinetic
(more…)
According to NASA on which planet purple rocks are found?
A. Jupitar
B. Mars
C. Earth
D. Neptune
How many valence electrons are in chlorine(cl) atom?
A. Chlorine has 1 valence electrons
B. Chlorine has 2 valence electrons
C. Chlorine has 7 valence electrons
D. Chlorine has 6 valence electrons (more…)
A. 122,792,173 Roblox items were collected
B. 552,792,173 Roblox items were collected
C. 511792,173 Roblox items were collected
D. 586,792,173 Roblox items were collected
A. In the year 2018, Roblox has 300 different games
B. In the year 2018, Roblox has 300,000 different games
C. In the year 2018, Roblox has 100,00 different games
D. None of these (more…)
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