If you carefully feel a blood vessel that is visible on the inner surface of the forearm and find that it has no pulse. Which vessel is it?

should be the ulnar vein

Explanation:

Veins-The major veins of the forearm are the Cephalic vein, Basilic vein, Ulnar vein, and Median Antebrachium vein. These veins are responsible for returning blood from the forearm back to the heart. There are also many superficial veins that are visible and important for clinical purposes.

Deep veins — The deep veins of the upper extremity include the paired ulnar, radial, and interosseous veins in the forearm; paired brachial veins of the upper arm; and axillary vein. The axillary vein becomes the subclavian vein at the lower border of the teres major muscle.

In anatomy, the ulnar veins are venae comitantes for the ulnar artery. They mostly drain the medial aspect of the forearm. They arise in the hand and terminate when they join the radial veins to form the brachial veins. They follow the same course as the ulnar artery.

Im sorry if Im wrong. Hope this helped though.

for  example, forests have higher evapotranspiration than other ecosystems,  such  as grasslands, because of their deeper roots and greater leaf area. thus forests have a net moistening effect on the atmosphere and become a moisture source for downwind ecosystems.