If 10-5=5 then what's 5-10=

The valve seat performs two functions: it provides a seal for the valve in the combustion chamber, and it provides a cool surface to carry heat away from the valve. most valves use a seating angle.

What are the countries in south asia?

Based on what you've learned about the professions, which ones appeal to you as a potential career and why? if none interest you as a future career, indicate another career you're interested in and explain why that career interests you.