Pollution and digging oil wells. Pollution contaminates the Earth and digging oil wells can cause earthquakes.
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Your question: A material possessing free electrons, and capable of passing electrical current, is called a ___________.
Your answer: A material possessing free electrons, and capable of passing electrical current, is called a conductor.
Any queries?
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Explanation is in a file.
The answer is; Bryophytes are nonvascular plants, and pteridophytes are seedless vascular plants
Pteridophytes have a vascular system (phloem and xylem tissues) but produce spores for reproduction, unlike other higher plants. An example of pteridophytes is the fern. Bryophytes that include Moses are referred to as ‘lower plants because they do not have a true vascular system.
From first to last,
1) Pioneer species like grasses and flowers grow
2) Bushes begin to dominate
3) Trees become common and outcompete other plants for sunlight
4) an intact ecosystem is disrupted by a natural disaster
5) The climax community for the area is established once again
