Question: Thanks to a global ban on the ivory trade that was passed in 1989 by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), the African elephant population may be reversing its spiral toward extinction

The ban on ivory trade has been effective in protecting the elephant from extinction.
Answer: yes
Question: Three months after the FBI raided the offices of the Dorean Group in Union City, California, neighboring companies in the same office park have received letters claiming that rent for the office park should now be paid to the Dorean Group. The owner of the office park, Hanover Properties, insists that they have not sold the park and called the Dorean Group's claim fraudulent. The first letter from the Dorean Group, dated May 2nd, 2005, purported to "inform [the tenants] of the change in ownership of the property [the tenants] now occupy," and asked that "payment of rents be sent" to the principals of the Dorean Group. The letter also included notarized documents authorizing the sale by an alleged agent of the current owner, Hanover Properties, a "Julia Pantibratyuk."

Hanover Properties owns the Dorean Group.
Answer: no
Question: Reaction Engines Limited, a firm in Oxford, United Kingdom, has recently been awarded 1 million by the European Space Agency. This money is to be used for development work for the firm's SABRE engines. The SABRE engines are for a reusable spaceplane that it is intended to be able to travel into space and return completely intact.

The SABRE engines could be in service within 10 years.
Answer:
no