if you do not contact your loan servicer to select another option, your Federal student loans will default to standard repayment, which has a term of

10 years

Explanation:

When the student is not able to pay the loan on regular basis then the repayment plan is available that is called standard repayment plan. It is a kind of default plan for all and most kind of student loans. In this the monthly payment is broken down of an amount of $50 which is the minimum amount for loan pay for the duration of maximum 10 years. This payment plan helps to lower down the interest money on the payments.

chemical weathering

explanation:

the answer to your question is tooth decay.