Valerie creates a model using three different rocks. the rocks are classified as igneous, metamorphic, and sedimentary. which property does valerie use for classification purposes?

texture is NOT the correct answer. I'm assuming that formation is the right answer.

there really is life in the deepest part

evidence and logical support is essential for a scientist to do in order to maintain credibility. this is because no one can believe without any logic and without any evidence.hence a scientist can maintain credibility by proving himself and by answering logically so experiments prove very beneficial. logical hypothesis give conclusion which is acceptable. therefore, there are two main factors to maintain credibility by a scientist is evidence and logical support.