What are the common group of minerals? Silicates, oxides, sulfates, sulfides, carbonates, native elements, and halides are all major mineral groups. Silicates. Oxides. Sulfates. Sulfides. Carbonates. Native Elements. Halides. What are the two main groups of minerals? All minerals, however, can be classified into two main groups—silicate minerals and nonsilicate minerals—based on the chemical compositions […]
Who is the father of science history?
Who is the father of science history? Galileo Galilei What was invented during the 1600s? 46 Items listed When Invention Place 1600 The Vice Europe 1604 Mine Railway England 1608 Telescope Netherlands 1609 Newspaper Germany What is the most important invention in human history? The Greatest Inventions In The Past 1000 Years Invention Inventor 1 […]
What are the four basic principles of the 1628 Petition of Right?
What are the four basic principles of the 1628 Petition of Right? The petition sought recognition of four principles: no taxation without the consent of Parliament, no imprisonment without cause, no quartering of soldiers on subjects, and no martial law in peacetime. What statement best describes the significance of the Magna Carta? The statement which […]
Why the Colour of shadow is always black?
Why does sugar melt and not burn?
Why does sugar melt and not burn? Hypothetically, if wood and sugar were assumed to have an identical chemical composition and supplied the exact same amount of heat energy, then any difference in the reaction would need to be derived from the amount of oxygen. A lack of oxygen is why sugar does not readily […]
How far should the driver sit from the airbag?
How far should the driver sit from the airbag? roughly 10 inches Is it dangerous to not have a steering wheel airbag? A vehicle is only as safe as the driver behind the wheel. Vehicles came without airbags for decades before they became standard equipment. A safe, defensive driver can drive millions of miles and […]
Can a chemical change be reversed?
Can a chemical change be reversed? A chemical change occurs whenever matter changes into an entirely different substance with different chemical properties. Because chemical changes result in different substances, they often cannot be undone. What is a chemical change that Cannot be reversed? Burning is a non-reversible chemical change. When you burn wood, the carbon […]
What are the qualities of project manager?
What are the qualities of project manager? Effective project management entails having the following attributes that are essential in becoming an effective project manager: Effective communication skills. Strong leadership skills. Good decision maker. Technical expertise. Inspires a shared vision. Team-building skills. Cool under pressure. What is a project lifecycle? What is a Project Life Cycle? […]
Do humans have gill slits?
Do humans have gill slits? …and other nonaquatic vertebrates exhibit gill slits even though they never breathe through gills. These slits are found in the embryos of all vertebrates because they share as common ancestors the fish in which these structures first evolved. Human embryos also exhibit by the fourth week of development a well-defined… […]
Is heliocentric model correct?
Is heliocentric model correct? The geocentric model states that the Sun and the planets move around the Earth instead of the heliocentric model with the Sun in the center. Obviously the Earth orbits the Sun. Sure, the textbooks all say that the solar system is heliocentric. What is difference between geocentric and heliocentric? The geocentric […]