Which of the following statements about biodegradable polymers is true?
A) They will degrade quickly in a landfill.
B) Thermosetting polymers are biodegradable, but thermoplastics are not.
C) They often require specific temperatures or the presence of microorganisms in order to undergo degradation.
D) Polyvinyl chloride is a biodegradable polymer.
Question 2
The fact that a heat pump requires energy to move heat from a colder object (the outside of a house) to a hotter object (the inside of the house) is a real life observation of which thermodynamic law?
A) the first law
B) the second law
C) the third law
D) the fourth law
True-color view of Mars seen through NASA's Hubble Space Telescope in 1999
Which is TRUE about the alternation of generations cycle that is diagramed above?
How to convert verbal statements into algebraic equations (Part 2)
How to convert verbal statements into algebraic equations (Part 4)
A diagram showing one of Mendel’s crosses. True-breeding strains of pea plants with smooth and ...