How can charge be transferred?

How can charge be transferred? Whenever electrons are transferred between objects, neutral matter becomes charged. For example, when atoms lose or gain electrons they become charged particles called ions. Three ways electrons can be transferred are conduction, friction, and polarization. In each case, the total charge remains the same. How are charges conserved? In particle […]

How many humans are in the World 2020?

How many humans are in the World 2020? 7,800,000,000 people What was the world population 100 years ago? Population growth by world region Two hundred years ago the world population was just over one billion. Since then the number of people on the planet grew more than 7-fold to 7.7 billion in 2019. What will […]

When scientists were attempting to determine the structure of the genetic code Crick and coworkers found that when?

When scientists were attempting to determine the structure of the genetic code Crick and coworkers found that when? When scientists were attempting to determine the structure of the genetic code, Crick and coworkers found that when three base additions or three base deletions occurred in a single gene, the wild-type phenotype was sometimes restored. Which […]

What is the population in Sub-Saharan Africa?

What is the population in Sub-Saharan Africa? approximately 1.1 billion inhabitants Is Sub-Saharan Africa highly populated? The population of sub-Sahara Africa has grown from 186 million to 856 million people from 1950-2010. Along with China and India, these countries will have the largest populations in the world. By 2050, Nigeria is projected to outpace the […]

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