Venus, Earth, Mars
Carbon.
All life as we currently know it cannot exist without water (H2O). Scientists look for signs of water when searching for life on other planets.
As of yet there isn't a job title of exobiologist since we don't have proof of life on other planets. The closest thing is an astrobiologist. They search for life or signs of life. They make about $50,000-$100,000 a year. That would probably be about the same for an exobiologist if they ever discover life on other planets.
The twelve signs of the Zodiac are figures of astrology, and represented the star formations through which the Sun, Moon, and five planets passed. (Only Mercury, Venus, Mars, Jupiter, and Saturn are visible to the naked eye.) The constellations with these zodiac names were among those listed by Ptolemy (83 AD - 168 AD). In order of the zodiac calendar : Aries, Taurus, Gemini, Cancer, Leo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, and Pisces. Due to the procession of the equinox, the astronomical constellations are no longer aligned with the signs, notably Capricorn.
This is a non starter because horoscopes may be fun but they are not science. Even if you set out to find out if there are correlations between star signs and anything else, you are not going to get a large enough sample size to be meaningful. Why not do something astronomical instead, perhaps a solar system model or one of the outer planets with all its newly discovered moons.
no but there has been signs of frozen water on Pluto
If by Oxygen you mean pure Oxygen molecules, then no, only possible trace amounts. However, there is massive amounts of Carbon Dioxide (95% of Venus's atmosphere) which can be fairly easily be converted into oxygen.
Water, O2 (Oxygen), Energy resource, Climate.
the moon has extreme heat and extreme cold because the moon has no atmosphere. unlike earth the moon and other planets do not have living life there fore do not have any atmospheric signs or any atmosphere.
Earth...
In the early stages of planet formation, planets did in fact hit other planets. Mercury, Earth and Uranus all have signs of planetary impacts. Nowadays, the solar system is stable and a planetary collision is highly unlikely without some form of external impetus.
the atmosphere is made up of different gases (nitrogen, oxygen, argon, carbondioxide, water vapour and other noble gases). the atmosphere helps to keep the earth warm and at the correct temperature. However if the levels of these gases increase to a huge amount, it will becomes too hot which is one of the signs of global warming!
probably neon because of all the neon signs they use there, or oxygen, a lot of times pure oxygen is pumped into casinos to make the players feel good, or nitrogen considering it makes up 78% of the atmosphere
There are many warning signs that you are experiencing a lack of oxygen. Some warning signs can include skin that is bluish to gray in color, lightheaded feeling, and tingling in extremities such as fingers or toes.
star signs alignment of planets etc at time and date of birth
Scientist have been sending rovers and astronauts to the other planets to detect life on other planets. (I think I'm not 100% sure,sorry)
The signs and symptoms for oxygen toxicity include changes in vision, nausea, twitching, and dizziness. More serious symptoms can include seizures and possible death.