A ____________________ is a chemical used to control or kill populations of organisms that we consider undesirable such as insects, weeds, or rodents.
Fill in the blank(s) with the appropriate word(s).
Right answer summary: pesticide
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Ocean thermal electric conversion systems would operate best in
A. Warm, deep tropical seas B. Cold, shallow temperate seas C. Warm, shallow tropical seas D. Warm, shallow freshwater lakes E. Cold, deep polar seas
A friend produces a Geiger counter to check the local background radiation. It ticks
Another friend, who normally fears most that which is understood least, makes an effort to keep away from the region of the Geiger counter and looks to you for advice. What do you say? A) Run away as fast as you can! B) The Geiger counter is emitting radiation. C) The Geiger counter is detecting naturally occurring radiation from your body. D) Wear heavy clothes.
Which of the following will contribute to water conservation?
A) watering lawns at night, using low-flow faucets, and landscaping with native plants B) planting non-native wetland plants for landscaping C) washing dishes by hand D) watering lawns during peak sunlight hours, when plants need water most E) using aerial sprays for crop irrigation
Geographers study people, places, and environments, but rarely collect data that can be mapped
Indicate whether the statement is true or false