text: Paragraph four is where the author begins to make more comparisons between Earth and its dangerous sister planet Venus. The author explains or hypothsizes that Venus was once like Earth. They belive Venus at one time had oceans, and could support many forms life, like Earth. Venus has many analogous features similar our planet. Venus has valleys, moutains, and craters. The author also says that returning to Venus is almost indisputable, and how could they make it safer and efficent for scientists.