Answer: You can tell when a chemical reaction is taking place because it is usually accompanied by easily observed physical effects, such as the emission of heat and light, the formation of a precipitate, the evolution of gas, or a color change. All these things characterize what you look out for to find a chemical change.
Explanation:
Trade or share. I fthey are very diffrent plpulations they will probably not trade or share any resources that they have
Answer: Since the industrial revolution, human activities have also resulted in an increase in natural greenhouse gases, especially carbon dioxide. An increase in these gases in the atmosphere enhances the atmosphere's ability to trap heat, which leads to an increase in the average surface temperature of the Earth.
Explanation:
Answer: I believe the answer is the DNA.
Explanation: The DNA in your body is always the same, and I know there is DNA in muscle cells, as well as in your skin cells
Answer:
A hypothesis for this question could be: If there is more light intensity on a plant then, there would be higher rates of photosynthesis.
Explanation:
