Scenario Three A Scientist noticed that cattails grew only in swampy parts of his backyard. He decided to try to find out why. He
went to the library and found out the following facts: Cattails are not found in deserts, Cattails are usually found
in many swamps, Cattails sometimes grow in rivers and streams. The scientist thought for awhile, then said, "I
think I have figured out the answer. Cattails need a lot of water to grow." He then went into his yard and dug up
100 cattails. He divided them into four groups. Each group contained 25 cattails. All of the groups were grown in
the same type of soil, they all received the same amount of light, and they were all kept at the same
temperature. There was only one difference between the groups. Group 1 received 4 mL of water a day. Group 2
received 3 mL of water a day. Group 3 received 2 mL of water a day. Group 4 received 1 mL of water each day.
Every day he went out and measured the plants. After 30 days he observed that the plants in group 1 had grown
an average of 8 cm. The plants in group 2 had grown an average of 4 cm. The plants in group 3 had grown an
average of 2 cm. The plants in group 4 had grown an average of only 1 cm. He then decided that the amount of
water that a cattail receives affects its growth, Plants that receive more water, grow more. The scientist then
repeated his experiment using another 100 cattails.
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Science27 of the most iconic, jaw-dropping photos of the earth and the moon from spacedave mosher  oct 1, 2018, 11: 13 am etnasa/flickrapollo 11 astronauts took this photo of earth on july 20, 1969.from the ground, earth looks like a boundless fertile plain that beckons to be explored and exploited.but astronauts would beg -  and even plead  - to differ."you realize that people often say, 'i hope to go to heaven when i die,'" jim lovell, an astronaut who flew on the apollo 8 and apollo 13 missions to the moon, previously  told business insider. "in reality, if you think about it, you go to heaven when you're born."lovell has seen first-hand that we live on a tiny rock hopelessly lost in the void. he's also quick to tell you it's the only one we've got - a  fragile spaceship  for more than 7 billion people: "you arrive on a planet that has the proper mass, has the gravity to contain water and an atmosphere, which are the very essentials for life. and you arrive on this planet that's orbiting a star just at the right distance - not too far to be too cold, or too close to be too hot - and just at the right distance to absorb that star's energy and then, with that energy, cause life to evolve here in the first place. in reality, you know, god has really given us a stage, just looking at where we were around the moon, a stage on which we perform. and how that play turns out is up to us, i guess."humanity has recorded photos of earth from hundreds, thousands, millions, and even billions of miles away, some of them taken by lovell himself.these images not only scientists study our dynamic world, but also understand how a habitable planet looks from afar, which aids the search for  more worlds. most importantly, however, the images underscore our peculiar existence on  a mote of cosmic dust.take a moment to ponder 27 of the most arresting images of earth that humankind has ever captured from space.a

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H×ph=memesand logan paul