What describes the threat to survival when a new predator targets the young of a species?
A. limiting factor
B. succession
C. success factor
D. extinction
E. biological factor
A
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Tectonic uplift is an example of an endogenic process
Indicate whether the statement is true or false
Which of the following properties of radiation affect its penetrating power?
A) energy B) mass C) both a and b D) neither a nor b
Latent heat energy is related to: a. temperature inversions
b. electromagnetic waves. c. phase changes of water. d. None of these choices.
Carl and Don run separate chemical fertilizer manufacturing companies in the same industrial park. Both pollute the river flowing through the industrial park with debris and waste from their manufacturing processes. In the table below, the first row shows the current level of debris and waste each produces that makes its way into the river. The information in the table also indicates how much it would cost each manufacturer to reduce its pollution by additional increments of 10 pounds. If the government imposes a pollution tax of $7 for each 10 pounds of debris, total pollution will fall by ____ pounds, at a total cost of ____.
A. 40; $28 B. 40; $17 C. 40; $22 D. 60; $30