It may be based on Mercury's moon. Our day is 24 hours because that's the time our moon finishes a 360 degree rotation. Mercury takes 58 days 15 hours and 30 min for it moon to fully rotate.
Answer:
Oxygen became available from cyanobacteria
Explanation:
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I had this question on a previous exam. The answer is: 'a predator eats one phenotype rather than another for a year.'
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- Hannah ❤
Answer:
scientific method
Explanation:
The primary aim of research and scientific experiments conducted by scientists is to solve problems and provide factual answers to them. In order to accomplish this, a procedure called scientific method is employed.
Scientific method refers to a step-by-step procedure used to test the validity of an hypothesis. Scientific method uses the following steps;
1) Make observation
2) Ask a question
3) form an hypotheses.
4) perform an experiment
5) Analyze the results
Hence, SCIENTIFIC METHOD describes a series of steps designed to answer questions.
B. Composition mostly hydrogen and helium gas Mass 1.989 × 10³⁰ kg
Explanation:
The best data that describes the sun is that it's composition is made up of mostly hydrogen and helium gas with a mass of about 1.989 x 10³⁰kg.
- The sun is the largest body in our solar system and all planetary bodies revolves round it.
- At the core of the sun, nuclear fusion is occurring.
- Here, small atomic nuclei combines into larger ones with the release of a large amount of energy.
- The small nuclei are hydrogen and they produce helium.
- This process produce energy for the whole solar system.
- The sun is best defined as giant hot ball of gases.
Learn more:
Sun's energy brainly.com/question/1140127
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