C is the answer for this question
<h3>Questions: </h3>
What does a knickpoint indicate on a river profile
<h3>Answer: </h3>
A knickpoint is a steep section of a river's profile that can range in size from a single waterfall to a multi-kilometer high-gradient region.
Signed aggreements of trade
1 - Taxes. Best way to keep your money legally is to keep it at a financial institution that honors your country's tax system and keeps you from paying fines or serving jail time.
2 - Accountability. You'll have an easier time proving the money is yours from the legal forms they are required to file.
3 - Survivability. If you want your financial assets to transfer to your legal heirs you need legal paperwork!
4 - Accessibility. Financial institutions usually provide easier access to your money and have procedures for liquidating non/cash assets.
Surface winds are in the troposphere, and jet streams are winds that are located in the stratosphere.