Did humans ever have gills?

Did humans ever have gills? Our Voice. Fish can’t talk, but they do have gills—and that’s where our voices come from. Just like fish, human embryos have gill arches (bony loops in the embryo’s neck). Those gill arches become the bones of your lower jaw, middle ear, and voice box. Why can humans not breathe […]

What type of reaction is 2Na 2h20 2NaOH H2?

What type of reaction is 2Na 2h20 2NaOH H2? redox reaction What type of reaction is Na HOH? A colourless solution is formed, consisting of strongly alkalic sodium hydroxide (caustic soda) and hydrogen gas. This is an exothermic reaction. What type of reaction is this C O2 –> CO2? Another special type of combination reaction […]

Why is Mn so flat?

Why is Mn so flat? Minnesota is flat because much of it was leveled by glaciers. In the last Ice Age, ending about 12,000 years ago, glaciers rumbled down the state, flattening out the topography. Parts of northwestern Minnesota are characterized by volcanic rock, formed by lava during the Midcontinental Rift 1.1 billion years ago. […]

What are the 7 base units?

What are the 7 base units? The seven SI base units, which are comprised of: Length – meter (m) Time – second (s) Amount of substance – mole (mole) Electric current – ampere (A) Temperature – kelvin (K) Luminous intensity – candela (cd) Mass – kilogram (kg) What are the three basic units? The three […]

What kind of error is human error?

What kind of error is human error? Human error is an unintentional action or decision. Violations are intentional failures – deliberately doing the wrong thing. There are three types of human error: slips and lapses (skill-based errors), and mistakes. These types of human error can happen to even the most experienced and well-trained person. How […]

Do Chemical Engineers take thermodynamics?

Do Chemical Engineers take thermodynamics? Most chemical engineering undergraduate curriculums require a two course sequence of thermodynamics. The first course generally focuses on the application of mass, energy and entropy balances to chemical and engineering processes. Is Chemical Engineering Thermodynamics hard? Chemical Engineering is not difficult to understand but sometimes is very involved due to […]

Who scored fastest 100 in ODI?

Who scored fastest 100 in ODI? AB de Villiers Who scored 200 in T20? The first time, Team India scored 200-plus in T20Is was against England during the 2007 World T20 at Durban. The match is remembered for Yuvraj Singh’s six sixes in an over off Stuart Broad. India posted 218/4 and won the game […]

Begin typing your search term above and press enter to search. Press ESC to cancel.

Back To Top