Hurricanes form over warm ocean waters. Sometimes they strike land. When a hurricane reaches land, it pushes a wall of ocean water ashore. This wall of water is called a storm surge. Heavy rain and storm surge from a hurricane can cause flooding.

Once a hurricane forms, weather forecasters predict its path. They also predict how strong it will get. This information helps people get ready for the storm.

There are five types, or categories, of hurricanes. The scale of categories is called the Saffir-Simpson Hurricane Scale. The categories are based on wind speed.

• Category 1: Winds 119-153 km/hr (74-95 mph) – faster than a cheetah
• Category 2: Winds 154-177 km/hr (96-110 mph) – as fast or faster than a baseball pitcher’s fastball
• Category 3: Winds 178-208 km/hr (111-129 mph) – similar, or close, to the serving speed of many professional tennis players
• Category 4: Winds 209-251 km/hr (130-156 mph) – faster than the world’s fastest rollercoaster
• Category 5: Winds more than 252 km/hr (157 mph) – similar, or close, to the speed of some high-speed trains

read more: Water pollution – Wikipedia

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During daytime, plants take in carbon dioxide and release oxygen in the process of photosynthesis in the presence of sunlight. However, they even respire simultaneously and hence also take in oxygen and release carbon dioxide. But the production of oxygen is more than the production of carbon dioxide. Hence, if we sleep under a tree during daytime, we may get a good amount of oxygen, thus giving us a nice sleep. However, at night, plants do not perform photosynthesis due to the absence of sunlight. But respiration still goes on. Hence, as compared to oxygen, the proportion of carbon dioxide around the trees is more. Thus, if we sleep under a tree at night, we may feel suffocated due to lack of oxygen. Moreover, inhalation of excess carbon dioxide is harmful to our lungs and health. Therefore, it is not good to sleep under a tree at night.

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Q. WHEN YOU RUN, YOUR BREATHING BECOMES FASTER AS YOU NEED MORE OXYGEN. BUT WHY DOES YOUR RATE OF HEARTBEAT ALSO INCREASE?

When you run, your oxygen intake increases because you require a constant supply of it in order to produce more energy. Hence to meet this requirement, your heart also begins to beat faster which leads to a faster pulse. Breathing thus becomes harder since our lungs need to take in more fresh air.

In addition to our lungs, our muscles also burn energy during running. In fact during a run, our muscles require up to three times more Oxygen as compared to the time when they are resting. Hence for our muscles to stay energetic, blood must circulate through them.

This pumping of the blood is done by the heart, which in turn causes the heartbeat to increase.

Conclusion: Hence, Running causes the heart rate to rise because the muscles require more oxygen-rich blood because they are working harder than while walking. The heart beats faster so that the heart supplies more oxygenated blood and nutrients to the body muscles.

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The pollution from local factories and oil refinery at #Mathura are also to blame for. These factories produce pollutants like Sulfur Dioxide and Nitrogen Dioxide, which react with atmospheric oxygen. These gases further react with the water molecules present in the air forming Sulphuric acid and Nitric Acid. These acids then precipitate in the form of acid rain that falls on the Taj.

The acid rain then digests and destroys the outer layer of Taj Mahal – thus turning the white marble yellowish and also leading to cracks in the marble. The acids in the acid rain react with calcium carbonate of marble and degrade it. This phenomenon is also called #Marblecancer, which slowly corrodes away the marble. In addition to this, 2000 metric tons of waste is being dumped into the drains which eventually lead to the river Yamuna, which flows along the monument, further aiding the slow tarnishing of one of the world’s most beautiful man-made creations.

Another potential cause of the Taj losing its shine is the #tourists themselves. Every year, a large number of people visit the Taj Mahal. With so many people walking over this #marblebeauty, there is bound to be some wear and tear. The humidity level inside the building rises as a result of hosting such a huge population every day, gradually darkening its walls and floor.

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Who wouldn’t love watching high speed cars— Running, Crashing Overtaking one other???

We are going to answer questions such as, How normal tyres differ from slick tyres? Why only slick tyres are suitable for racing? How friction plays an important role in racing?

We will be inspecting the role of physics in racing as well.. We bet that from now on, racing will be more exciting and much more fun for you .

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Ethyl Mercaptan, a sulfur compound is a clear liquid with a very strong and distinctive smell. Adding it helps us to identify and alert the user about a gas leakage which would otherwise go unnoticed due to the odourless LPG Gas leading to dangerous situations like a fire or explosion.

Ethyl Mercaptan is not only used as an additive to odorless gases like butane, propane, and petroleum to give them a warning odor BUT is also used in the manufacture of fungicides, pharmaceuticals, insecticides, resins, and other chemicals.

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https://youtu.be/E4BGnwEmSjE

In such a case, even a thinner sheet of cotton above the blanket does wonders!! Have you ever wondered what could be the reason behind this? Put your genius brain cells to work and try to come up with a possible explanation for this. And in case you’re still unclear, don’t worry, Experihub is here to help!

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Venus, though the twin of our planet, stands in complete contrast to it in almost every aspect, if not in all aspects. It is the brightest planet. it is the second planet from the Sun. One factor that completely sets this planet apart from ours is that it rotates “clockwise.” Therefore, the east witnesses the sun setting instead of rising and vice versa.

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The holes, simply let the air pass through, without any resistance. When air hits the hoarding, the hoarding board acts as a barrier in its path, so the air will try to push it If the air is too strong the board won’t be able to hold it, resulting in the airflow tearing the hoarding to make its way However when there are holes in the hoarding, then then the air hitting the hoarding will find a way to pass through holes in the hoarding, and will not damage it.

Watch the video above to get the answer.

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