Which list pairs the ions in lye, naoh, with the correct charge? na: negative; oh: positive nao: negative; h: positive na: positive; oh: negative nao: positive; h: negative

Environmental impacts on evolution : mastery test

Explain why the plants cortex would serve as the best food source for animals

(select all the correct choose each statement that is scientific. - the opinions of randomly selected participants in a survey prove the idea that global temperatures are not increasing on earth. - the universe's average temperature and rate of expansion support the idea that it began as one super-dense and hot mass 13.8 billion years ago. - ocean tides are caused by the uneven gravitational pulls of the moon and sun on different parts of earth. - human life is more valuable than other forms of life on earth because humans are more intelligent than other organisms.