Which of the following best fits the definition of sustainable?

What are the three elements commonly found in fertilizer?

If a harmless frog has the same coloration as a toxic frog this is an example of 

Poverty, population growth and desertification and drought are three of the 10 key factors of Agenda 21 as listed in your text. List two more of these 10 key factors.

Which of the following is the pH for an acid?

Which of the following is the correct way to write a scientific name?

What is the major source of nitrogen in the nitrogen biogeochemical cycle?

What is the trophic level of an herbivore such as a cow that eats only grass? 

What is the name of the positively charge particle found in the nucleus or center of an atom?

The loss of energy as it is transferred from one trophic level to the next higher level is an example of