Which of the following best matches the description?Pesticide designed to kill plants.
A. organophosphate
B. rodenticide
C. biocide
D. persistent pesticide
E. biomagnification
F. hard pesticide
G. fungicide
H. soft pesticide
I. auxin
J. macronutrients
K. micronutrient
L. chlorinated hydrocarbon
M. micronutrients
N. herbicide
O. weed
P. pheromone
Q. macronutrient
Answer: N
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Conditions in oceanic trenches that are inhospitable to life include
A) lack of light, extreme heat, and high pressure. B) lack of light, extreme cold, and toxic chemicals. C) lack of light, extreme cold, high pressure, and scarce food. D) lava, high pressure, and scarce food.
The molecule that is made during transcription is
A) messenger RNA. B) transfer RNA. C) ribosomal RNA. D) DNA.
Consider the following processes: respiration, combustion, polymerization, nitrification, industrial fixation, and photosynthesis. How many of these result in the release of oxygen into the atmosphere?
A) all B) 4 C) 2 D) 1 E) none
What is the problem with the use of beach groins?
A. Up-drift areas experience beach starvation B. Down-drift areas experience coastal subsidence C. Down-drift areas will experience beach starvation D. Natural jetties are formed in up-drift areas