Description : Let's say we have a fairly massive blackhole near-by which is causing havoc with the solar system. Suppose we have the technology, can we destroy it using a stream of anti-particles (i.e. anti-matter)?
Last Answer : i personally have doubts because we would need the same mass in antiparticles as the black hole is heavy
Description : Pick out the wrong statement. (A) Biological oxygen demand (BOD) is a characteristic and not a constituent of water (B) BOD is a measure of the amount of oxygen which will be demanded & used in 5 days ... BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable water) (D) None of these
Last Answer : (D) None of these