Select four focuses of sustainable agriculture. reliance on renewable energy

genetic engineering of seeds

water and air quality

reducing soil erosion

plant and soil nutrition

soil chemical evaluation

effective water usage

false because ozone (o3) depletion does not cause global warming, but both of these environmental problems have a common cause: human activities that release pollutants into the atmosphere altering it.

global warming is caused primarily by putting too much carbon dioxide into the atmosphere when coal, oil, and natural gas are burned to generate electricity or to run our cars.

explanation:

i got something better   a catchphrase here it is

ahem  

ahem

what the squwock

explanation:

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

answer: dna

because all cells have genes