If you were an engineer designing a new artificial biosphere,

A-what approach would you use?
B-How could
your design attempt to avoid the problems faced by Biosphere 2?
C- Can you find
any papers published by current projects using this facility to support your
explanation with evidence? ( BONUS )

Stars x and y are both bluish main sequence stars. star x has a higher absolute brightness than star y. how do the two stars compare? explain

What causes the formation of ocean currents?

The temperature in gavin's oven is a sinusoidal function of time. gavin sets his oven so that it has a maximum temperature of 280°f and a minimum temperature of 240°. once the temperature hits 280°, it takes 20 minutes before it is 280° again. gavin's cake needs to be in the oven for 30 minutes at temperatures at or above 270°. he puts the cake into the oven when it is at 260° and rising. how long will gavin need to leave the cake in the oven? (round your answer to the nearest minute.)