Answer:
Activation Energy is the Energy that Must be Overcome/reached by Reactants for Products to be formed.
I'd go with the 2nd Option.
Answer: 1. Mass and type of solution
2. Type of material
3. Temperature
Answer: D. Increase the amount of travel done by bike.
Explanation:
Environment protection has become a concerned issue for the human society because of the fact that certain human activities are deteriorating the quality of air, water, and soil by liberating wastes into the environment.
Among the options given, D. Increase the amount of travel done by bike. is the correct option. This is due to the fact that use of bike instead of using automobile like car will prevent the large amount of emission of harmful gases which are capable of polluting the air, water and soil can be restricted.
People had asked this many times and that is why they came up with methods and standards that will answer these type of questions. You can look it up in the NIST or the National Institute for Standards and Technology.
Atoms are the simpliest form of matter. But an atom can
be classified as an element and an element can be presented various substance. An
element can be oxygen, hydrogen and so on. The combination of two or more
elements is a compound. A compound can be a molecule, same as the atom to
element.
