Category: Physics

What does the Eastern Orthodox Church believe? Essentially the Orthodox Church shares much with the other Christian Churches in the belief that God revealed himself in Jesus Christ, and a belief in the incarnation of Christ, his crucifixion and resurrection. The Orthodox Church differs substantially in the way of life and worship. What is the […]

What is the chemical formula of carbon dioxide? CO2 What are three physical properties of carbon dioxide? Carbon dioxide appears as a colorless odorless gas at atmospheric temperatures and pressures. Relatively nontoxic and noncombustible. Heavier than air and may asphyxiate by the displacement of air. Soluble in water. Is carbon dioxide important for life? Carbon […]

How early did humans make fire? 1.5 million years ago How was meat eaten before fire? The first evidence of controlled use of fire is from about 2 million years ago, so we’ve probably been cooking meat for a long, long time. Before that, our ancestors ate the meat they could get raw, like all […]

How many types of ingestion are there? It is the consumption of food or drinks into the digestive system. There are two mechanical aspects associated with ingesting food, namely – chewing and swallowing. Nonetheless, due to the differences in the anatomy of different organisms, the mechanism of ingestion tends to differ. What is animal ingestion? […]

How are humans affected by the biogeochemical cycles? Human activities have greatly increased carbon dioxide levels in the atmosphere and nitrogen levels in the biosphere. Altered biogeochemical cycles combined with climate change increase the vulnerability of biodiversity, food security, human health, and water quality to a changing climate. What is an example of cycling matter? […]

Where can we find nitrogen? The Earth’s atmosphere is 78% nitrogen gas or N2. Even though there is so much nitrogen in the air, there is very little in the Earth’s crust. It can be found in some fairly rare minerals such as saltpeter. Nitrogen can also be found in all living organisms on Earth […]

Does diffraction affect frequency? None of the properties of a wave are changed by diffraction. The wavelength, frequency, period and speed are the same before and after diffraction. The only change is the direction in which the wave is travelling. What are the three common sources of interference? The two most common causes of interference […]

What natural resources do we need to survive? All the things we need to survive, such as food, water, air, and shelter, come from natural resources. Some of these resources, like small plants, can be replaced quickly after they are used. Others, like large trees, take a long time to replace. These are renewable resources. […]

When was Chaucer considered a success? In 1357, Geoffrey Chaucer became a public servant to Countess Elizabeth of Ulster and continued in that capacity with the British court throughout his lifetime. The Canterbury Tales became his best known and most acclaimed work. What made Chaucer successful during his life? Chaucer also gained fame as a […]

How can I get my Gmail account back? Follow the steps to recover your Google Account or Gmail. You’ll be asked some questions to confirm it’s your account. Answer as best you can. Reset your password when prompted. Choose a strong password that you haven’t already used with this account. Learn how to create a […]