How much of the earth’s atmosphere is made up of nitrogen and oxygen?

How much of the earth’s atmosphere is made up of nitrogen and oxygen?

It is primarily composed of nitrogen (78%) and oxygen (21%) with only small concentrations of other trace gases. Nearly all atmospheric water vapor or moisture is found in the troposphere, so it is the layer where most of Earth’s weather takes place.

Do cats meow to each other?

Jupiter’s moon Ganymede is the largest moon in the Solar System, and Ganymede as well as Saturn’s moon Titan are both larger than Mercury and Pluto. Earth’s Moon, Jupiter’s moons Callisto, Io, and Europa, and Neptune’s moon Triton are all larger than Pluto, but smaller than Mercury.

What does IPA stand for?

India Pale Ale (IPA) is a hoppy beer style within the broader category of pale ale. It was first brewed in England in the 19th century. The first known use of the term “India pale ale” is an advertisement in the Sydney Gazette and New South Wales Advertiser in 1829.

How do things glow in the dark?

Phosphors radiate visible light after being energized. This means you have to expose the items to light for a while before they will glow in the dark. Phosphors then slowly release their stored energy over time. As they release the energy, they emit small amounts of light, which we see as an object glowing.

Do whales have a nose?

They have nostrils called blowholes. Over millions of years of evoloution whales and dolphins nostrils moved to the top of their head. This allows them to breath by surfacing instead of them sticking their whole head out of the water. The first thing a newborn dolphin must do is to go to the surface to breathe.

Why does water boil faster with salt?

If you look at the heat capacity of salt water, you will find that it is less than pure water. In other words, it takes less energy to raise the temperature of the salt water 1°C than pure water. This means that the salt water heats up faster and eventually gets to its boiling point first.

What is the difference between salary and hourly?

Generally, the hourly-paid employees will earn wages at the rate of time and one-half for the hours in excess of 40 per week. The salaried employees in high pay positions are not likely to receive additional pay for the hours in excess of 40 per week. However, employees with low salaries are entitled to overtime pay.

What causes the color of the red sea?

Located between the East African coast and the Saudi Arabian peninsula, the Red Sea got its name because of a type of algae called Trichodesmium erythraeum, which is found in the sea. When these blooms of algae die off they appear to turn the blue-green color of the ocean to a reddish-brown.