why do plants in water need carbon dioxide

why do plants in water need carbon dioxide

Where Does a Plant's Mass Come From? Have you ever wondered where plants get their mass? All those leaves and branches have to come from somewhere, but where? It turns out that the main ingredients for plant growth are water, air, and energy. The air around you may seem empty, but it's not. Air is made of tiny bits that we call molecules. If you had enough air molecules, you could even weigh them. Two of the molecules in air are oxygen and carbon dioxide. You may think oxygen is the most important moleculeвwe need it to live. But carbon is important too. All living things on Earth are made of carbon. If you removed the water from our bodies, you would find that carbon makes up most of the rest of our weight, or mass. The same is true for plants. We get carbon from our food, but where do

 why does my car shake when i slow down

why does my car shake when i slow down

Sitting in a vibrating chair can be a very relaxing experience. But sitting in a vibrating car? Not so much. If your vehicle is vibrating or shaking, whether while idle or in motion, this indicates that something is wrong. Often times, the sensation will be felt through the steering wheel, but it can sometimes be felt throughout the entire vehicle. Left unchecked, this small problem could turn into a much bigger one. So why is your car vibrating and shaking? Here are some common causes: Wheels out of balance -- This is a that will cause vibrating and shaking in your automobile. Once your wheels get far out of balance, it can cause dangerous driving conditions, so it's important that you have them checked right away. Loose or disconnected hoses -- Several types of engine vibration are

 why do some cats not cover their poop

why do some cats not cover their poop

Covering poop is a normal behavior,бright? Not necessarily. Wild cats that bury their excrement do so for basically two reasons: One is to keep their presence unknown from possible predators. The other is to show that they are not challenging more dominant cats. These more dominant cats rarely bury feces, and often leave waste on grassy tussocks that elevate and make it even more prominent. So, it seems the only reason for a domesticated cat to bury her poop is if there is a dominant cat in the house. However, it is a very natural cat behavior. So why is your cat not doing it? Humans have encouraged the behavior in our pet cats, by selectively choosing (and breeding) the ones that are Бclean. Б Cats that leave their excrement uncovered for the world to admire are not abnormalБtheyБre just

 why is osteoporosis called the silent disease

why is osteoporosis called the silent disease

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 why would a dog eat its own feces

why would a dog eat its own feces

Veterinarians commonly deal with owner complaints that their dog eats its own or another animal s feces or poop. Although there is much speculation why dogs indulge in this behavior, we still don t know exactly why some dogs have this disgusting habit. Many Animals, and Humans, Eat Feces (cop-row-fage-ee-uh) is a Greek word meaning feces eating and is used to describe this behavior. We all know of feces eating insects, but many more animals are in this group. Rations on pig farms used to be formulated to account for a certain percentage of coprophagia. Rabbits and hamsters and other cecal or hindgut digesters routinely eat their feces in order to extract more nutrients from their food that may have escaped fermentation the first time. Elephants, pandas, koalas and hippo young are born

 why is the sky so red tonight

why is the sky so red tonight

Tonight March 15, 2018 watch for the planets Mercury and Venus in the west sky after sunset. Especially from the northern half of Earth s globe where Mercury and Venus appear straight up above the sunset on these near-spring evenings you can see both worlds with the unaided eye. Watch for them as soon as the sky gets dark. Venus, being brighter, will appear first. See Venus but not Mercury? That s possible if you re looking too soon after sunset (too much bright twilight still), or if you re in the Southern Hemisphere, where Venus and Mercury are more to the side of the sunset (more about that below). If you see Venus, but not Mercury, aim binoculars at Venus. Right now, these two worlds are so close together they appear in the same binocular field. At mid-northern latitudes, given an

 why do we light fireworks on july 4th

why do we light fireworks on july 4th

While may seem like a very American tradition, especially on the Fourth of July, their origins go back centuries before in Philadelphia in 1777. The earliest forms of such pyrotechnics can be traced to around 2,000 years ago in China. During the Han Dynasty in 200 B. C. , people are to have roasted bamboo stalks until they would turn black and sizzle, and the air inside the hollow stalks would explode. Baozhu is a Mandarin word for firecracker that translates directly to. say that at some point between 600 A. D. and 900 A. D. , took that idea to the next level by filling bamboo shoots with gunpowder made from saltpeter (potassium nitrate, sulfur, and carbon acquired from charcoal), and throwing them into a fire pit. Steel dust or cast-iron shavings were added to make them sparkle.

 why peace is important in the world

why peace is important in the world

, Lecompton, author of БPeace to All Beings: Veggie Soup for the ChickenБs SoulБ and БThe Missing Peace: The Hidden Power of Our Kinship with AnimalsБ: Peace is a state of nonsuffering as well as a celebration of life. We now know from many spiritual teachers that we can make a choice to live in peace within our own hearts, that we can actually choose not to suffer and choose instead to live in gratitude and love. Not only that, but we are also learning that finding and claiming that peace within us is essential to creating a world at peace. Because all of life is interconnected, our fear, hatred and anger decreases the peace in the world, whereas our love, joy and gratitude increases the peace. Why is peace important? Without it, the destructive tendencies of our species will continue

 why is my dog snoring all of a sudden

why is my dog snoring all of a sudden

We just settle into our comfortable bed and turn the lights out and are grateful at the peacefulness and quiet of the night after a long hard day. We have our faithful and loving companions sleeping quietly beside us on their beds or in our beds, and then just as we slowly drift off to never land, the earth shatters with a loud grunting, heaving, rumble! Our darling dog is snoring so loudly a train could have rumbled through the house! Why do they snore? Old dogs are prone to snoring for a number of reasons. The followingPcould playPa role: If your older dog is on any medication for pain or congestion. These could potentially partially block their airwavesPfrom relaxing the surrounding muscles. If your old dog is overweight this can push the upper airways closed. It is best to keep your

 why do we get fat as we age

why do we get fat as we age

At first, it may seem hardly noticeable. You notice your clothes are a little tighter or you even have to buy a size larger in some pieces. You tell yourself youБre just filling out a bit. As the years go on, however, your waistline continues to grow even though you havenБt changed your eating habits Б or at least you donБt think so. The struggle with weight gain happens to many people as they get older, and itБs cause is multifactorial, including a poor diet, sedentary lifestyle, genetics, social determinants, medications, or hormonal imbalances. While adding a few pounds may seem inevitable over time, it can be frustrating. For this reason, it helps to understand why it happens and what you can do about it. How many times have you watched children at play and said to yourself, БI wish I