ECOSYSTEMS & CHANGE

why is the ozone important?

Which of the following is not an impact of deforestation?

accumulation of chemicals that increase in concentration as you go up the food chain

what sustainable practice will help to correct the global warming trend?

sources of nitrates & phosphates include all of the following except

ozone depletion is caused by this 

excess nitrates and phosphates in water can lead to

increase of CO2 in the atmosphere is caused by all of the following except

an increase in algal blooms

Clear cutting trees affects the carbon cycle in what way?

sulfur dioxide & nitrous oxides mix with water vapor

primary cause for loss of biodiversity

biomagnification of toxic substances most adversely impacts

Acid rain has all of the following impacts on the environment except

all of the following are impacts of global warming except...