Technology can have good and bad effects. what is a bad effect of spraying pesticides on crops with the use of airplanes?
a. it is sometimes sprayed too far from the crops.
b. it increases food production.
c. it lowers the cost of food.
d. it decreases the cost of spraying pesticides.

Are these strong bases, neutral, strong acids, weak acids or weak base household bleach (ph=12.6) fluid in a car's battery (ph of less than 1.0) milk (ph=6.7) stomach contents (ph=2.2) pure water (ph=7)

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a.coral reefs because of the loss of the symbiotic algae living within their bodies b.penguin populations because the fish they eat will move into warmer waters c.mountain-dwelling birds because rising sea levels will relocate their food sources d.large cats in the rainforest because of decreased habitat loss for their prey

What is an example of a scientific question that galileo could not have answered with out this new tool?