What is a pollutant? 1. A substance used for a different purpose than its intent.

2. A substance used for construction purpuses.

3. An acidic substance.

4. An basic substance.

well schools are being forced to embrace computers. unlike their "digital immigrant" teachers, these students are "digital natives", born into a world where technology is an integral part of everyday life. almost every student has access to a multitude of computers, laptops and tablet devices. it would be crazy to assume an assignment would  not be written on computer in this day and age.

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because they are eaten by the frog and the frog getseaten by the snake and the snake by the eagle

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the answer is true when observing or determining population size, a direct observation is use, in which each organism is counted in a population or in an area. one benefit of this measure is that you get the exact population count but it will take a long time to  determine  the  size  of a  population.