- Is fire a gas?
- What would happen if we lost the moon?
- Can fish see humans?
- Can a fish survive in milk?
- Is all gas invisible?
- Can we see air?
- Can we survive without the atmosphere?
- Can Earth lose its atmosphere?
- Do fish get thirsty?
- Can humans see water?
- Can you see oxygen?
- Why is the sky blue?
- What if air was visible?
- What if we could see air?
- What can’t eyes see?
- Is Air invisible or transparent?
- Why can you feel air but not see it?
- What will happen if there is no atmosphere on earth?
Is fire a gas?
For the most part, fire is a mixture of hot gases.
Flames are the result of a chemical reaction, primarily between oxygen in the air and a fuel, such as wood or propane.
While there is a small amount of ionization going on in an ordinary fire, most of the matter in the flame is a gas..
What would happen if we lost the moon?
Without the moon, a day on earth would only last six to twelve hours. There could be more than a thousand days in one year! That’s because the Earth’s rotation slows down over time thanks to the gravitational force — or pull of the moon — and without it, days would go by in a blink.
Can fish see humans?
Fish can recognize human faces, study shows A new study says, Yes, it probably can. Researchers studying archerfish found the fish can tell a familiar human face from dozens of new faces with surprising accuracy. This is a big, big deal. It’s the first time fish have demonstrated this ability.
Can a fish survive in milk?
Fish can swim in milk but fish will not survive for long period. Milk has other ions in it in much higher concentrations than water. … I mean, yes, but they will die fairly quickly as milk does not contain oxygen, or any amount of hydrogen/survival requirement to live.
Is all gas invisible?
There are few gases that humans can see. Actually, gases aren’t invisible: many are quite brightly coloured. … Other gases in the atmosphere (particularly oxygen, carbon dioxide and water vapour) also absorb light, but at ultraviolet and infrared wavelengths that we can’t see.
Can we see air?
Air is normally invisible. From space, the atmosphere, which is made of air, looks like a thin blue band because of the way the light passes through it. That’s the same reason why the sky looks blue. Down here, we can trace air with smoke or feel it with a fan.
Can we survive without the atmosphere?
Without the atmosphere, we would find it very hard to survive. Humans can last weeks without food, days without water, but only minutes without air. We also consume it at a higher rate: humans breathe the equivalent of 13 kg of air each day, compared with eating 2.4 kg of food and drinking 1 kg of liquid.
Can Earth lose its atmosphere?
Earth’s atmosphere won’t be gone anytime soon. Not until the Sun goes red giant in about 5 billion years, anyway. At that distant point in time, the expanding Sun will boil our atmosphere away like nothing. Then we’re done.
Do fish get thirsty?
They don’t ever get thirsty. Marine fish are what’s called hypertonic to the seawater. So essentially, they lose water through their gills to the seawater. … in order to replenish that water, they have to drink seawater and process the salt out.
Can humans see water?
We can not see water itself. Water is denser than air. It refracts and reflects light. … We see reflections on the surface, distorted images below the surface and objects floating on and in the water.
Can you see oxygen?
Since no light of that wavelength gets to us, there is no reason for us to evolve eyes that respond to that kind of light. And even if our eyes could see that kind of light, there wouldn’t be any for use to see oxygen with. Therefore, we cannot see oxygen.
Why is the sky blue?
Gases and particles in Earth’s atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
What if air was visible?
Very simple, if air becomes visible, everything else will be invisible, as air is present everywhere. … Water is transparent, and so is air.
What if we could see air?
If we could see “air” to any significant degree — and not just the smog, water vapor, etc suspended in it at times, the — it would look BLACK as the large layer of air above us would block all of the sunlight. In such an environment, we likely would never have developed eyes even.
What can’t eyes see?
That’s because, even though those colors exist, you’ve probably never seen them. Red-green and yellow-blue are the so-called “forbidden colors.” Composed of pairs of hues whose light frequencies automatically cancel each other out in the human eye, they’re supposed to be impossible to see simultaneously.
Is Air invisible or transparent?
Air is transparent because light (photons) can pass through it without being blocked by the molecules/atoms of air (nitrogen, oxygen, some carbon dioxide). Gases, in general, have molecules/atoms that have wide spaces between them, so a lot of them are quite transparent.
Why can you feel air but not see it?
Air is transparent to our eyes because we have evolved retinas that are sensitive to the very wavelengths of light that pass through it unobstructed – otherwise we wouldn’t be able to see anything at all. Wind is just moving air, caused by pressure differences in the atmosphere.
What will happen if there is no atmosphere on earth?
Eventually (long after surface life had died), solar radiation would break atmospheric water into oxygen, which would react with carbon on the Earth to form carbon dioxide. The air would still be too thin to breathe. The lack of atmosphere would chill the Earth’s surface. … Plants and land animals would die.