Please capitalize where necessary: avoid the black market
A: Avoid the black market

Q: a minimal surface is characterized by having a total curvature equal to zero in every point.

A: A minimal surface is characterized by having a total curvature equal to zero in every point.

Q: every eu country has at least one national contact point (some also have regional or local contact points).
A: Every EU country has at least one National Contact Point (some also have regional or local contact points).

Problem: web views is an easy to use program that changes the way windows explorer looks substituting custom graphics for the standard windows graphics.
Can you repeat this sentence, but capitalize it?
Answer: Web Views is an easy to use program that changes the way Windows Explorer looks substituting custom graphics for the standard Windows graphics.

Text: fears abound that a more concerted engagement from india with the international regime will result in greater constraints on india but little change in global dynamics and commitments.

Correct capitalization: Fears abound that a more concerted engagement from India with the international regime will result in greater constraints on India but little change in global dynamics and commitments.

Q: easily accessible in the system tray.

A:
Easily accessible in the system tray.