Which statements describe hydrotropism? Check all that apply. Hydrotropism is a plant’s response to light. Hydrotropism is a plant’s response to an external stimulus. Hydrotropism causes cells to grow longer on one side of the roots. Hydrotropism causes cells to grow longer on one side of the stems. Hydrotropism causes a plant to grow toward light. Hydrotropism causes a plant to grow away from light.

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.

igneous rocks are formed by solidification of cooled magma (molten rock), with or without crystallization, either below the surface as intrusive (plutonic) rocks or on the surface as extrusive (volcanic) rocks.  

the composition depends on the source magma. there are almost a thousand types of composition found till now.  

hope this