Q: Rockweed has been harvested commercially in Nova Scotia since the late 1950's and is currently the most important commercial seaweed in Atlantic Canada.
Marine vegetation is  harvested.

A: yes


Q: Around 50 million years ago, in contrast, oxygen levels in the atmosphere measured 23 percent--2 percent higher than today.
23% of the atmosphere is made up by oxygen.

A: no


Q: Japanese drug makers are now trying to build comprehensive independent operations in research and development, production and marketing.
There are companies that have split the management of their Research and Development processes.

A:
no