Which state is likely to have the most tornadoes per year?
oregon
montana
kansas
utah

Kansas

Explanation:

The Tornado is the  most common features of the U.S than any other feature as they get more than 1200 annually four times than Europe that is a violent storm and it occurs east of the rocky mountains as those of the Plains, and the Midwest, and the Mississippi Valley of the south parts of the United States  All areas that are vulnerable to tornadoes and are called the Tornado Alley and have areas that stretch from the Texas to Canada with its centers in the Oklahoma, the Kansas and the northern Texas.

Ba rock that formed 1,400 million years ago!