Does the sentence "During the early study of radioactivity, various heavy radioactive isotopes were given their own names, but such names are no longer used, except for deuterium and tritium." provide a valid answer to the question "What are the symbols used for deuterium and tritium?" OPTIONS:
- yes
- no

A: no

Does the sentence "The ultimate goal is human flourishing; making life better for all humans, and as the most conscious species, also promoting concern for the welfare of other sentient beings and the planet as a whole." provide a valid answer to the question "What is the main goal of humanism optimistic?" OPTIONS:
- yes
- no

A: yes

Does the sentence "The color issue was not settled until Kenya became independent in 1963, ending the last vestige of the British Empire." provide a valid answer to the question "The color issue was not settled until when?" OPTIONS:
- yes
- no

A: yes

Does the sentence "The activation energy necessary for a chemical reaction can be in the form of thermal energy." provide a valid answer to the question "What is not possible unless the reactants surmount an energy barrier known as the activation energy?" OPTIONS:
- yes
- no

A:
no