The distribution of craters on the surface of venus suggests that a. its surface is ancient and has not been altered by volcanism, erosion or tectonics since the time of the heavy bombardment. b. parts of the surface are ancient, while others have been resurfaced within the last 100 million years. c. the entire planet was resurfaced about 750 million years ago. d. there has been ongoing regional resurfacing leading to a distribution of surface ages between about 100 million years and 750 million years.

c. the entire planet was resurfaced about 750 million years ago.

Explanation:

Most of the craters (around 85%) on Venus are in immaculate condition although they have been slightly decayed by volcanism.

The crust of Venus is not in continuous motion like Earth's. This leads to the heat being trapped in the mantle. The crust of Venus undergoes a cyclical process every 100 million years or so. At the end of this cycle there is subduction occurs i.e., one tectonic plate moving sideways and moves down. Subduction recycles the crust.

The above factors also indicate that the entire planet was resurfaced about 750 million years ago

elly's long hair:

a. if the salon only takes cash, then this isn't the problem. it doesn't matter how much she has in her checking account.   she can't get a haircut until she has the cash.

b. if she has overdraft protection, then there's no problem.   she can go ahead and write a check that her account can't cover, then sometime later, pay the bank some outrageous usury for loaning her a few bucks for a few days, but with beautiful hair.

c. if elly has some principles, and doesn't want to write a bad check, then now she has a problem.   her desire for the new hairstyle is in conflict with her honesty and integrity.

d.   if the bank will not process a check she writes, then even if she had a million $$ in her account, she couldn't use any of it.   the amount she has in her account is not the problem.   and if i may suggest, she might as well close her checking account, and put the money where it'll work for her.   it's not doing her a bit of good in a checking account, since she can't write any checks.

justin can't pay the full balance:

a. he can't even handle the credit limit he has now.   under no circumstances should he ask for a higher limit.

b.   he can ask for the grace period to be extended.   but that's no solution, the bank will almost certainly refuse anyway, and there are much better options.   he knew the rules of his credit card when he started using it.

c.   he definitely should pay the interest on the balance, plus as much of the balance as he can cover at the same time.

d.   he definitely should pay the minimum otherwise they could shut down his card.   he should also pay as much more as he possibly can.   he should also remember the awkward situation he's in, stop buying stuff on credit that he can't afford, and avoid adding any more debt.

i'd say that justin's best best option isn't on this list of choices.   what he has to do:   pay as much as he can at least the minimum payment plus as much more as he can and then avoid adding more debt.