Phemolphthalein changes colour.(i forgot from which to which) This is because calcium hydrroxide is basic.
Answer: a
explanation: it’s not really a downside but :/
Answer:
i think reproduction, variation, and competition
Explanation:
Radioactive isotopes got scattered in the experiment which contained radion, however, the bacteria didn't have a high amount of radiation. You even eat radiation every day. For Example, a banana has approximately 1/1,000,000 sieverts. in order for that radiation to kill you, you would need the radiation of 2 sieverts, or 2 trillion bananas.