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.

Which of the following is incorrect about National Monuments?

Pacific island people located and settled Easter Island at about 1000 CE.  They then lived in isolation for about 800 years on this island.  During this time they overused and exhausted many of the natural resources on the island such as the forest and bird life.  This left no wood for building boats for offshore fishing and/or leaving the island.  This resulted in overpopulation of the island considering the available resources then available.

What is the formula (in either words or chemical symbols) for Respiration?

Who is credited with writing a book entitled ”The Silent Spring” which: led to the establishment of the EPA, led to the banning of the pesticide DDT, and pointed out that the Department of Agriculture was responsible for both promoting and regulating the use of pesticides and herbicides?

Carrying Capacity is defined as

Which of the following is incorrect about National Monuments?

Pacific island people located and settled Easter Island at about 1000 CE.  They then lived in isolation for about 800 years on this island.  During this time they overused and exhausted many of the natural resources on the island such as the forest and bird life.  This left no wood for building boats for offshore fishing and/or leaving the island.  This resulted in overpopulation of the island considering the available resources then available.

Global population growth rates are generally: Highest in the wealthiest countries Lowest in countries that cannot support more growth. Highest in the poorest, less developed countries. Not a cause for concern anywhere in the world.

Is the following the correct sequence (order of occurrence) of events on earth?  (Dates are approximates.) 1) Formation of the earth and our solar system – (C4 ½ billion years ago)             2) First fossil evidence of life in the oceans – (C4 billion years ago)             3) First fossil evidence of sexual reproduction – (C1 billion years ago)             4) First fossil evidence of life on land – (C500 million years ago)             5) First fossil evidence of pre-human species – (C3 to 5 million years ago)             6) Earliest human (Homo sapiens) fossils in Africa – (C200,000 years ago)             7) First human fossils in North America – (C15,000 to 30,000 years ago) True (yes) or False (no)