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 h…
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 pla…
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.
Pacific island people located and settled Easter Island at a…
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.
Which is not true about the “solar wind”?
Which is not true about the “solar wind”?
Fission energy is liberated when the nucleus of an atom such…
Fission energy is liberated when the nucleus of an atom such as uranium is broken apart. Fusion energy is liberated when the nucleus of atoms, such as hydrogen, is forced together to form a new element (such as helium).
The overall impact of the Greenhouse effect on the climate a…
The overall impact of the Greenhouse effect on the climate and humans is
Which of the following molecules are believed to have been a…
Which of the following molecules are believed to have been absent from the primitive reducing atmosphere?
A DNA chip that contains rows of DNA sequences for mutations…
A DNA chip that contains rows of DNA sequences for mutations that indicate the presence of particular genetic disorders is representative of what type of biotechnology?
When conditions are unfavorable, some bacteria form
When conditions are unfavorable, some bacteria form