How are island arc and continental arc magmas similar?
a) Both are formed near spreading centers.
b) Both are formed near hot spots.
c) Both are formed near transform boundaries.
d) Both are formed near subduction zones.
d) Both are formed near subduction zones.
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Which of the following statements accurately compares the frequency of lightning discharges within a cloud and cloud-to-ground lightning?
A. Discharges within a cloud are more frequent. B. Discharges within a cloud are about as frequent. C. Discharges within a cloud occur rarely. D. Discharges within a cloud are less frequent.
The suspended load of a stream is the coarser materials that are dragged along the stream bed
Indicate whether the statement is true or false
Describe the processes of photosynthesis and respiration
What will be an ideal response?
The number of people served by advanced wastewater treatment plants doubled between 1968 and the mid-1990s, but because the treatment plants _______________________, the quantity of waste emitted into the water after treatment ___________________ .
A. became so much more effective; decreased by about one-third B. became so much less effective; increased by about one-third C. remained ineffective; remained the same D. moderately improved; increased by 10%