In the United States, in almost every state (Montana is the exception), an employee is considered to be an at-will employee unless there is proof otherwise, such as an employment contract. Exceptions to the At-Will Employment Doctrine. Employers need to understand that there are caveats to the above definition.
From Wikipedia, the free encyclopedia. Ninja rocks are broken shards of spark plugs formed by smashing the ceramic portion of the spark plug with a hammer or other large object.
Granite and gabbro are examples of this type of rock. They are intrusive igneous rocks because they form from magma underground. Unlike sedimentary rocks, igneous rocks do not contain any fossils. This is because any fossils in the original rock will have melted when the magma formed. 1  Page. 2  1.