3. when did rachel carson begin to see ominous signs of poisons in the environment? 4. what did rachel carson's book, silent spring, alert the world to? 5. what did rachel carson do after she saw ominous signs of poisons in the environment? 6. what did congress do after silent spring alerted the world to the environmental problems caused by pesticides?

What is the percentage by mass of silicon (si) in iron aluminum silicate (fe3al2(sio4)3)?

Main expenses you plan on making payments on a new car too. you want to spend 15% of your monthly net pay on the car payment, insurance, registration, and taxes combined. what is your monthly car allowance? $149.46 $298.91 $448.37 $597.83

What happens when an atom of sulfur combines with two atoms of chlorine to produce sci2? a. each chlorine atom shares a pair of electrons with the sulfur atom. b. an electron is transferred from each chlorine atom to the sulfur atom. c. an electron is transferred from the sulfur atom to each chlorine atom. d. each chlorine atom shares all its valence electrons with the sulfur atom.