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  Nuclear fission is a process where the nucleus of an atom combines with the nucleus of another atom releasing large amounts of energy.  Nuclear fusion is a process where the nucleus of an atom is split, releasing large amounts of energy

What are the 3 types of natural disasters that are caused by the “Ring of Fire” around the Pacific Ocean?

The three key things necessary for any life on a planet (in addition to trace elements) does not include

The “Happy Planet” concept shows that there is always more human happiness with higher incomes and more affluence.

Plate tectonics involves the movement of the continental plates relative to each other and is caused by the movement of magma under the crust of the earth.  The plates primarily move up and down relative to each other.

The inner core of the earth is made up primarily of solid iron due to high pressure.   This inner layer has a higher temperature than the outer core which is liquid.   The rotation of the inner core causes a magnetic field to be generated.

The only country in the world to successfully control population growth is

Which of the following molecules are believed to have been absent from the primitive reducing atmosphere?

Bacterial cells pick up free pieces of DNA that were secreted by live bacteria or released from dead bacteria in their environment. This process is called

When conditions are unfavorable, some bacteria form