Q: Does "However, an examination of mammalian teeth suggests that it is the open, gritty habitat and not the grass itself which is linked to diet changes in mammals, giving rise to the "grit, not grass" hypothesis." provide a valid answer to "about how long ago did the climate become favorable?"?
A: no

Q: Does "Samba Schools are large, social entities with thousands of members and a theme for their song and parade each year." provide a valid answer to "About how many Samba schools are in Rio?"?
A: no

Q: Does "The outer layer will usually be provided by the carrier's aircraft, specifically its AEW&C aircraft combined with the CAP." provide a valid answer to "What protects the outer layer?"?
A: yes

Q: Does "Several titles released between 1985 and 1987 were analog audio only due to the length of the title and the desire to keep the film on one disc (e.g., Back to the Future)." provide a valid answer to "What was the length capacity of the CAA55 format?"?
A:
no