B Of course, the real drawback to traveling to Mars is the lack of cell phone reception.
Answer:
While these mounds take many forms and served different purposes, with each in a sense telling its own story, all were built entirely by hand, usually by piling up earth one basket-full at a time. Some served as burial mounds for the honored dead, while other flat-topped mounds were parts of large cities or towns and held temples or ceremonial buildings, and still others were built in the shape of giant animals.
Answer:
microbes are known as farmers friends they help in enriching the soil by composting biodegradable waste into natural fertilizer hence play a vital role in compost production.
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<span>First a science fair requires projects. They should be a diverse group of experiments and demonstrations. Second, the students should be present and close by their project so they can explain their work. The third important component of a successful Science Fair is community mentors to act as judges. The judges should interact with the students, make fair decisions, and spark interest in science.</span>
Plant cells have a cell wall , chloroplasts , and a vacuole , animal cells do not not.