What is the general trend for electron affinity values going across a period?

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

Miner's coal distributors does not mine coal itself, nor does it even store or handle the coal. instead, miner's solicits orders for low sulfur coal from other firms, then purchases the required amount from suppliers and directs them to ship the coal to its customers. what is miner's