What are the only two rivers in the world that flow north? Johns River and the Nile River are the only two rivers in the world that flow north.” In this editorial he explains that there are hundreds of rivers that flow north and; in fact, the St. Johns River flows south as well. What […]
Can you breathe oxygen 17?
What is high angle grain boundaries?
What is high angle grain boundaries? Generally, it is assumed that low-angle grain boundaries (LAGBs) are those with a misorientation less than about 15 degrees. In contrast, the misorientation of high-angle grain boundaries (HAGBs) is greater than about 15 degrees. What are the characteristics of grain boundary? A grain boundary is the interface between two […]
Why is there no change in temperature during a phase change?
What is the largest group of rock-forming minerals?
What is the largest group of rock-forming minerals? Silicates What are the two main group of minerals? All minerals, however, can be classified into two main groups—silicate minerals and nonsilicate minerals—based on the chemical compositions of the minerals. What are the 7 mineral groups? Silicates, oxides, sulfates, sulfides, carbonates, native elements, and halides are all […]
What are 3 examples of differentiated animal cells?
What are 3 examples of differentiated animal cells? The sperm cell, ovum cell, ciliated epithelial cell, and nerve cells are examples of differentiated cells in animals. Why do you need differentiated cells? Differentiated cells are important in a multicellular organism because they are able to perform a specialised function in the body. However, specialisation comes […]
Did Diego Rivera have cancer?
Did Diego Rivera have cancer? His fifth application for his re-admission to the Communist Party of Mexico is accepted. 1955: Rivera marries his art dealer, Emma Hurtado. Rivera is found to have cancer. The Mexican government instead had him buried in the National Rotunda of Illustrious Men. Who did Diego Rivera sleep with? Leon Trotsky […]
Are ionic structures strong?
Are ionic structures strong? Ionic compounds have regular structures, called giant ionic lattices . In a giant ionic lattice, there are strong electrostatic forces of attraction acting in all directions between the oppositely charged ions. The structure and bonding of ionic compounds explain their properties . Why do giant ionic structures dissolve in water? To […]
How do you find the flux of a curved surface?
Does the heart control the brain?
Does the heart control the brain? Armour, in 1991, discovered that the heart has its “little brain” or “intrinsic cardiac nervous system.” This “heart brain” is composed of approximately 40,000 neurons that are alike neurons in the brain, meaning that the heart has its own nervous system. What part of brain controls fear and anxiety? […]