The abbreviations for a tetragram, a nanosecond and a kiloliter are as follows:
Tg ,ns and kl.
Nanosecond is *10-9.
One teragram is ten raised to the power of 9 and one kiloliter is equivalent to one thousand liters.
I think it's the first and second option but I could be wrong because I don't know much about deserts :)
false because there are millions of stars in the solar system so they can't be big if that many are in it :)
