Cholera is a bacterial disease that is spread throughout a community by contaminated water. How can the spread of cholera be prevented?​

the second type of galaxy is called a barred spiral, which has a thing called a bar straddling the nucleus

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.

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.