What are some of the major products that destroy the ozone? The main uses of ozone depleting substances include: CFCs and HCFCs in refrigerators and air conditioners, HCFCs and halons in fire extinguishers, CFCs and HCFCs in foam, CFCs and HCFCs as aerosol propellants, and. methyl bromide for fumigation of soil, structures and goods to […]
Are bubbles filled with carbon dioxide?
Are bubbles filled with carbon dioxide? A bubble is full of air. It floats on the carbon dioxide layer, just like a helium balloon floating in the air. You might expect that the air in the bubble would cool and contract near the dry ice, but the bubble actually expands slightly. Does a bubble contain […]
What happens when the polar ice caps are gone?
What happens when the polar ice caps are gone? The disappearing ice in the Arctic affects more than just the surrounding area. As the Arctic’s ice disappears, the rest of the world experiences global warming. “If all the ice covering Antarctica , Greenland, and in mountain glaciers around the world were to melt, sea level […]
What effect does carbon have on heat?
What effect does carbon have on heat? The temperature of the Earth depends on a balance between incoming energy from the Sun and the energy that bounces back into space. Carbon dioxide absorbs heat that would otherwise be lost to space. Some of this energy is re-emitted back to Earth, causing additional heating of the […]
Why is Chi-Chi so hated?
Why is Chi-Chi so hated? Fans dislike Chi Chi for basically being an overprotective parent to Gohan despite both the fact he’s far more capable in a fight for a child and that when the world needs to be saved Gohan needs to help out. Chi Chi comes off as ridiculously selfish and unable to […]
What is historical development of educational technology?
What is historical development of educational technology? Educational technology in way could be traced back to the emergence of very early tools, e.g., paintings on cave walls. But usually its history is made to start with educational film (1900’s) or Sidney Pressey’s mechanical teaching machines in the 1920′. What is the history of education in […]
How many phones are in Ghana?
How many phones are in Ghana? As of the third quarter of 2019, Ghana counted 16.7 million unique mobile subscribers, 15.1 million smartphone devices and 10.7 million mobile internet users in the country (as of Q3 2019). What percent of Ghanaians own a mobile phone today? Ownership rate of selected digital devices in Ghana 2020 […]
Can you smoke at 16 in Germany?
Can you smoke at 16 in Germany? Sale restrictions Under Germany’s “Protection of Young Persons Act” it is unlawful to sell or supply any tobacco product to anyone who is under eighteen years of age. It is also illegal to permit minors to smoke in any public place. Is it legal to smoke in Germany? […]
How did the lives of German people change after ww1?
How did the lives of German people change after ww1? The end of the war Many German civilians were starving and there were severe food shortages. Sailors at Kiel and Wilhelmshaven had mutinied after being ordered to take part in one final offensive against the British navy. How were German soldiers treated after ww1? After […]