Examlex
If a pure material decomposes when heated into simpler substances,this proves that the material was a compound.
DDT
Dichloro-Diphenyl-Trichloroethane, a synthetic insecticide known for its environmental persistence and its role in the decline of certain wildlife populations before restrictions were placed on its use.
Second-Generation Pesticides
Pesticides developed to overcome resistance or environmental concerns associated with first-generation pesticides, often designed to be more targeted or biodegradable.
Spiders
Arachnids characterized by eight legs, typically spinning webs to capture prey, and playing a significant role in controlling insect populations.
Spruce Budworm
A destructive North American caterpillar that infests conifer forests, notably spruce and fir trees, causing significant damage to these ecosystems during outbreak periods.
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