1.what do many scientists believe contributed to the extinction of the dinosaurs
a. asteroid impact b. global warming c. predators d. plate tectonics
2.which of the following may lead to the breakdown of the ozone layer in the stratosphere a.carbon dioxide b. methane c. oxygen d. chlorofluorocarbons
3. which of the following statements about the greenhouse effect is true
a. all greenhouse gases are harmful b. life on earth is suffering because of the greenhouse effect c. life on earth would not exist without the greenhouse effect d. the greenhouse effect is caused by human activity
Solved
Show answers
More tips
Answers on questions: Chemistry
- C Chemistry What is the concentration of nacl in a solution if titration of 15.00 ml of the solution with 0.2503 m agno3 requires 20.22 ml of the agno3 solution to reach the...
- C Chemistry What is the hybridization at each carbon atom in the molecule? write hybridizations starting on the left in molecule?...
- C Chemistry Calculate the volume of dry co2 produced at body temperature (37 ∘c) and 0.970 atm when 25.5 g of glucose is consumed in this reaction....
- C Chemistry Explain how this lab simulates the various isotopes of an element...
- C Chemistry I need help question 13...
- C Chemistry Naji was using his computer to model the strength of the magnetic field around a bar magnet. He knows that certain parts of the magnetic field are stronger than...
- C Chemistry which type of power plant you think should be Virginia s main energy source. Make sure you also include at least 3 reasons why....
- C Chemistry In a certain reaction, the theoretical yield of iron is 6.5 grams. During production, 5.7 grams of iron was produced. What is the percent yield of this reaction?...
- C Chemistry Matt did an experiment to study the solubility of two substances. He poured 100 ml of water at 20C into each of two beakers labeled A and B. He put 50g of Substance...
- C Chemistry Question 3 (2 points) The electromagnetic waves with the lowest frequency are waves....
Ответ:
2) B
3) and i am not 100% sure about this one but I think that it is B idk tho
Ответ:
Explanation:
the nymph looks like a smaller version of the adult insect, & it also has no wings & molts.