- What is the strongest thing in the universe?
- What contains 90% of the air?
- Can you breathe in pure oxygen?
- What is the most abundant organic compound on earth?
- What is the rarest element in the universe?
- What is the hardest thing to find?
- What element makes up 80 percent of the air?
- What is the hardest thing in the universe?
- What is the most abundant element in the human body?
- Is oxygen the most common chemical compound on earth?
- Which is the most abundant protein found in nature?
- What are the 10 most common elements on earth?
- What is the most abundant molecule on earth?
- Is water an organic compound?
- Can the earth run out of oxygen?
- What is the most abundant molecule in the human body?
- Why is oxygen so common in the universe?
What is the strongest thing in the universe?
A new study suggests that the “nuclear pasta” found in neutron stars is 10 billion times stronger than steel.
Humans have looked for harder, stronger substances for millennia, replacing rock with iron, steel, composites and now graphene..
What contains 90% of the air?
troposphereLayers of the Atmosphere The very lowest layer, which contains 90% of the atmosphere’s mass, is called the troposphere.
Can you breathe in pure oxygen?
Oxygen radicals harm the fats, protein and DNA in your body. This damages your eyes so you can’t see properly, and your lungs, so you can’t breathe normally. So breathing pure oxygen is quite dangerous.
What is the most abundant organic compound on earth?
CelluloseCellulose is the most abundant organic compound on Earth. It is the main constituent of plant fiber; plants contain on average 33% cellulose, and cotton is the purest form at 90%.
What is the rarest element in the universe?
AstatineAstatine is the rarest naturally occurring element.
What is the hardest thing to find?
Especially Astatine (At). That’s pretty much the hardest thing to find anywhere. The NPR says that Astatine is so rare that it’s never even been seen directly because if you managed to actually get enough of it together, it would vaporize itself with its own radioactive heat.
What element makes up 80 percent of the air?
NitrogenNitrogen comprises the greatest part of the atmosphere, at almost 80 percent by volume. Nitrogen is a colorless, odorless, tasteless gas that reacts very little with other substances. The atmosphere also contains oxygen, at about 20 percent.
What is the hardest thing in the universe?
As substances go, “nuclear pasta” is far from a limp noodle. According to researchers from McGill University, a substance of that name may be the strongest material in the universe. Stronger than steel, diamond, and graphene, nuclear pasta is the material that makes up neutron stars.
What is the most abundant element in the human body?
Nitrogen – 2.4kg The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you. They are found throughout your body, mostly as water but also as components of biomolecules such as proteins, fats, DNA and carbohydrates.
Is oxygen the most common chemical compound on earth?
Although the amount of oxygen in the universe is dwarfed by hydrogen and helium, oxygen is the most common element on Earth, and it is a crucial component of life. Oxygen exists in two elemental forms: molecular oxygen (O2) and ozone (O3). It also exists in countless compounds with other elements.
Which is the most abundant protein found in nature?
Rubisco (d-ribulose 1,5-bisphosphate carboxylase/oxygenase) is responsible for the vast majority of global carbon fixation and has been claimed to be the most abundant protein on Earth.
What are the 10 most common elements on earth?
The mass-abundance of the nine most abundant elements in the Earth’s crust is approximately: oxygen 46%, silicon 28%, aluminum 8.3%, iron 5.6%, calcium 4.2%, sodium 2.5%, magnesium 2.4%, potassium 2.0%, and titanium 0.61%.
What is the most abundant molecule on earth?
WaterWater is the most abundant molecule on the Earth’s surface, covering about 71% of the surface of the planet. The word water is usually reserved for the substance in its liquid state, ice when in its solid state, and water vapor or steam when in its gaseous state.
Is water an organic compound?
The most general classification of chemical compounds is that of inorganic and organic substances. Inorganic substances generally do not contain a carbon atom, whereas organic substances contain several. … Water is definitely an inorganic compound (dihydrogen oxide) and methyl alcohol is definitely an organic compound.
Can the earth run out of oxygen?
Based on NASA’s calculation that a human needs 840 grams of oxygen per day, and the fact that Earth’s atmosphere contains about 1000 billion tonnes of oxygen and the global population is 7.5 billion, it would last around 370 years.
What is the most abundant molecule in the human body?
waterCells are composed of water, inorganic ions, and carbon-containing (organic) molecules. Water is the most abundant molecule in cells, accounting for 70% or more of total cell mass.
Why is oxygen so common in the universe?
Oxygen is the third most abundant element in the universe (after hydrogen and helium). It is therefore thought to be an important constituent of the clouds of gas and dust from which new stars and their planets develop. … These results have made the whereabouts of oxygen in clouds a major astronomical dilemma.