Someone can someone me with this virtual lab this has to be done by monday 10•16•17 anything

So, in a RNA strand, there are nucleotides. Specific ones are always paired with specific other ones. 

Adenine and Uracil are paired, and Guanine and Cytosine.

So basically, whenever you see a c, pair it with a G, and the same thing the other way around, and whenever you see an A, pair it with a U. In this case, the T's that have already been placed have to be paired with an A.

It should be cryosphere and hydrosphere