Types Of Life On Earth

1. Recall chapter 1 that Earth and Venus are so similar in size and overall composition that they are almost twins. Why did these planets evolved so differently? Why is earth’s atmosphere rich in oxygen and poor in carbon dioxide, whereas the reverse is true for Venus? What would happen to the Earth’s oceans if earth were a little bit closer to the sun?

Venus + Mars: Compare and contrast the evolution of the atmospheres of Mars, Venus, and Earth.

The atmosphere on Venus is composed of mostly Carbon dioxide with small amounts of nitrogen and sulphuric acid. This composition causes a runaway greenhouse gas effect that makes the planet even hotter than Mercury, despite the fact that Mercury is much closer to the sun. The air on Venus is incredibly dense due to the Nitrogen content, which, whilst admittedly is only a small part of the atmospheric composition, is at least four times the amount on Earth. This Atmospheric composition therefore creates a thick layer of

The air is not breathable by humans! Venus's atmosphere also contains traces of extra compounds and elements, such as neon, argon, carbon monoxide, and helium. Atmospheric pressure is over 90 times heavier than that of Earth; sheer crushing power. Clouds of sulfuric acid lay above a layer of carbon dioxide near the crust. These sulfuric clouds block most Muggle attempts to see Venus. On Venus, the climate changes all the time, from an extremely cold temperature to an extremely hot one. The temperature ranges from -364 to 870 degrees Fahrenheit. Venus is the hottest planet in the Solar System, and yet it is Mercury that is the closest planet to the Sun, Venus being second in

Venus' atmosphere is made up of mostly carbon dioxide and some nitrogen. There are also traces of carbon monoxide, argon, helium and neon on the planet. All of these elements make Venus' atmospheric pressure more then 90 percent heavier then the Earth. Closest to the surface is a layer of carbon dioxide, which is covered by a layer of clouds which makes it hard to make out the planet.

Like Mercury it is a rocky planet. It's even hotter than its smaller cousin Mercury, with temperatures drastically increased by an unchecked system of greenhouse gasses. The temperatures also varied wildly, from a -364 degree Fahrenheit low to a 870 degree high. Venus also hosts wild winds, blowing at extremely high speeds at the poles while the air at the equator hangs at a standstill. This air is also extremely heavy, and weighs almost 90 times heavier than that on Earth. Venus is constantly covered in thick, sulfurous clouds. These clouds reflect almost 90% of the light that hit them, making Venus the brightest object in the sky besides the sun and the moon. They also contain droplets of sulfuric acid, which occasionally rains down on the planet's surface. These storms even contain

There are some characteristics that Venus does have on the ground. “More than a thousand volcanoes or volcanic centers larger than 12 miles (20 kilometers) in diameter dot the surface of Venus. Volcanic flows have produced long, sinuous channels extending for hundreds of kilometers.” (Science.NationalGeographic.com para. 8 n.d). The landmass on Venus is potholed by small craters by meteor or comet strikes. “Most of Venus is covered with smooth volcanic plains, with two large "continents" standing out. Ishtar Terra lies to the north, covering an area approximately the size of Australia, while the Africa-sized Aphrodite Terra lies just south of the equator.” (Reed para. 4 2012). Unfortunately not much is known about the surface features, however, we know there are wind swept dunes and volcanoes. The land masses on Venus unlike Earth does not sit on hard rock or water like the continents do on the Earth and Mars; Venus however, is far too hot for water and heavy metals would melt due to the heat. The continents on Venus float on liquid magma. Some scientists theorize that 500 million years ago an incident happened that stopped any kind of plate

In many ways Venus is found to be similar to Earth. However their similarities do not extend further than their physical properties, for instance, their atmospheres differ greatly from each other. Venus is said to have atmospheric pressure of 92.1 barometers (Adams, D. Et al., 1994 p.126) which it is evidently 92 times greater than Earth’s that is 1.01 barometers (Adams, D. Et al., 1994 p.126) at sea-level. In spite of this comparison to Earth’s atmospheric pressure, Venus owns an out of the ordinary atmospheric composition.

The atmosphere of Venus is composed of around 96.5% carbon dioxide and 3.5% nitrogen. As well as this, there are trace amounts of various other elements and compounds like neon, helium, carbon monoxide and argon. Carbon dioxide is closest to the surface on the planet, making it unsuitable for most life to thrive. Venus also has a thick layer of clouds of sulphuric acid above this, which means that most sunlight directed towards the planet is reflected off, making it very difficult to observe it through a telescope.

Because of the atmosphere being so dense, it mostly consisting of carbon dioxide and small amounts of nitrogen. With the atmosphere containing large amounts of CO2, along with thick clouds of sulfur dioxide, it causes one of the strongest greenhouse effect in our solar system, making temperatures sky-rocket to at least 735 K. That's hotter than Mercury is! Studies have shown that Venus may have been like Earth and that there was substantial quantities of liquid water on the surface, but after a period of 600 million years to a billion years, the runaway greenhouse effect came to be present after the original water evaporated, generating those gases. The surface of Venus is isothermal, meaning that the temperature remains constant between day and night but also between the equator and the

SpaceX is planning on sending humans to Mars by the 2030s -- but why not Venus instead? Venus, at least in some ways, is much more like Earth than Mars, Unlike Mars, Venus has a thick atmosphere made of Carbon Dioxide to protect humans from harmful solar radiation, and may allow us to extract Oxygen from. Likewise, Venus also has similar size and gravity to Earth as well. After all, did I mention trips to Venus are much less costly than to Mars?

The atmosphere of Venus is extremely dense because it consists mainly of carbon dioxide and a small amount of nitrôgenio.A surface of Venus is effectively isothermal it maintains a constant temperature not only between day and night but also at the equator and the poles.

There are 3 planets Mars, Venus, and Mercury that are closest to being Earth-like and are called Terrestrial planets. Mars today is not a habitable planet for humans to make a living on but is told by scientist and astronomers that on a day in the future it may be. The future for Mars would be dependent heavily on local Red Planet Resources, such near surface water and glaciers. Evidence starting in the 21st Century have evidence building that liquid water may be flowing through seasonally at some of the Martian sites, which could prove life up there as all others predicted. So until further more test is done yearly; Mars, for now, is not yet habitable but may become one soon yet to be known. Switching to Venus, the planet that is most Earth-like. Astronomers believe that Venus may have been a habitable planet once is the past (about 2 billion in our Solar Systems history). This prediction came from the founding of Venus having a crushed Carbon Dioxide atmosphere that is 90 times thicker than our Earth’s, and there is also no water vapor. But there has been a discovery that Venus had a shallow liquid state water ocean. Recent studies have shown that the speed of a planet's orbit can determine if a planet is habitable. Venus, in this case, was to have a slow orbit rate since it had the thickest atmosphere. Astronomers in the past have recorded that Venus had more dryland in the past than Earth does

The rest is made up of nitrogen at 3.5%, carbon monoxide, argon, helium and neon. The planet has a surface temperature of 735K (462 C or 836.6 F). This temperature is higher than what the Muggles use for sterilization. The surface of Venus could be compared to Muggle Hell. There is a thick layer of sulfur dioxide clouds around the planet. These clouds contain sulfuric acid and they also reflect 90% of sunlight. The surface of Venus is not well lit for this reason. 85 m/s winds at the top of the clouds circle the planets every 4-5 Earth days. The highest point on Venus is Maxwell Montes, which is also the coolest, at 655 K (380 C or 716

The atmosphere of Venus made up of 98% carbon dioxide and 2% Nitrogen. This atmosphere also has the presence of helium, neon and argon. This is yet another thing which makes Venus different from Earth.