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mars has much less gas in its atmosphere than earth does. this is a reason why, on mars,

a. it is warmer
b. there is no wind
c. the air pressure is lower
d. the air pressure is higher

What type of organism is a one-celled organism that functions as a single unit? a. bi-celled b. single-celled c. pre-celled d. multi-celled

Pentane with molecular formula c5h12, exists in three isomeric forms. one shows linear carbon chains, another has one -ch3 groups present on the third carbon atom, and the third has two -ch3 groups present on the second carbon atom. what types of isomers are these? a. geometric isomers b. structural isomers c. halotropic isomers

Knowing the importance of the essential elements, why would someone chose a diet that does not address all of them?