Earth's earliest atmosphere lacked which gas that is necessary for life as we know it to exist today?

Central american countries are important agricultural producers. each year, the united states imports about five billion dollars’ worth of a. bananas b. cacao c. mangoes d. coffee

Which examples are relevant sources for students to use in research? check all that apply. a journal entry written by a professor who is considered an expert a report written by an independent government source a presentation by a company that includes paid information a document published by a renowned organization a scientific paper put out by a non-profit organization a blog whose author tries to sell a product or service

Select a real-life situation in which a person may face isolation due to a difficult condition, as gregor does after turning into an insect. you may choose a situation from the list below, or use a different one if your teacher agrees with your choice.psychological conditions: dementia, schizophrenia, depression, or post-traumatic stress disorderphysical conditions: paralysis or severe injury, going blind or becoming deaf, or facing an addictionsocial conditions: being wrongly convicted of a serious crime, or moving to a place where some attribute of the person makes others around the person view him or her with contempt or suspicionwhat condition did you choose to compare with gregor's condition?