Which question cannot be tested with a scientific investigation? Adrian is a researcher who works in a lab. He decides to perform an experiment to understand the side effects and benefits of drinking tea. He puts forth some questions about the experiment. They include, Do people who drink tea have a higher risk of brain illnesses than non-tea drinkers? and Do people who drink tea stay more alert than non-tea drinkers? He also proposes a question, Are people who drink tea happier than people who don’t drink tea?

Ineed to know why d is the correct answer asap

Getting out of bed is the first goal i tackle each day. 2several small goals are achieved by me as the day progresses. 3when i am riding the bus home or walking the dog, i think about the bigger goals i have for my life. which statement correctly describes the verb tense, aspect, and voice in this paragraph? a.sentences 1 and 2 contain present progressive verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice. b.sentences 1 and 2 contain simple present verbs. sentence 3 contains present progressive verbs. all three sentences use active voice. c.sentences 1 and 2 contain present progressive verbs. sentence 3 contains simple present verbs. all three sentences use active voice. d.sentences 1 and 2 contain simple present verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice.

Which material is commonly used as a culture medium for living cells