Ang ibig sabihin ng yamang tubig (water resources sa Ingles) ay mga likas na yaman na ating pinagkukunan sa mga anyong tubig tulad ng isda, perlas, alimango, at marami pang iba. Mahalaga ito sa atin sapagkat dito tayong madalas nabubuhay lalung-lalo na ang mga pangingisda kung saan ang yamang tubig ay ginagawa nilang paghahanap-buhay.
Tayo ay sagana sa yamang tubig sapagkat ang Pilipinas ay pinapaligiran ng tubig ngunit dahil sa pag-aabuso ng tao, tulad ng paggagamit ng dinamita, unti-unting nauubos ang ating mga yamang tubig. Kaya naman, dapat nating alagaan ng mabuti ang ating kalikasan. Pinapalibutan ito ng Dagat ng Pilipinas sa silangan, ng Dagat Luzónsa kanluran, at ng Dagat ng Celebes sa timog. An insecticide is a pesticide used against insects. They include ovicides and larvicides used against the eggs and larvae of insects respectively. Insecticides are used in agriculture, medicine, industry, and general home use. The use of insecticides is believed to be one of the major factors behind the increase in agricultural productivity in the 20th century.[1] Nearly all insecticides have the potential to significantly alter ecosystems; many are toxic to humans; and others are concentrated in the food chain. Some insecticides kill or harm other creatures in addition to those they are intended to kill. For example, birds may be poisoned when they eat food that was recently sprayed with insecticides or when they mistake insecticide granules on the ground for food and eat it.[7]

Sprayed insecticides may drift from the area to which it is applied and into wildlife areas, especially when it is sprayed aerially.[7]