Scientific questions are those questions that can be answered through observation of world around us and by experimentation. Explanation:

The scientific questions related to the earth and the space science are as follows:

1. How the celestial bodies like moon, sun, and others affect the functioning of the earth?

2. How earth is different from other planets in the space?

3. What is the distance covered by the earth from other celestial bodies including other planets in the solar system?

4. How asteroids and meteors affect the earth?

5. Why different regions of the earth receive different intensities of light from the sun?

succession returns a disturbed

ecosystem to a more stable state. this is also classified into two (2) types:

primary succession and secondary succession. the primary succession arises when

a new land is transformed and a bare rock has been exposed providing an environment

that can be occupied for the first time. while, secondary succession occurs

when a previously occupied environment was disturbed that kills much of all its

community

explanation:

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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.