Answer: Disjunctive
Explanation: A disjunctive concept is one characterized by either one of several concepts. Disjunctive concept is characterized based on the possession of at least one of any set of attribute characterizing a particular activity or action. For an event to occur, it should posses a certain feature or another in a given set of features required for such event to take place.
In the scenario above, once either one of the two events(1 and 2) occurs, then we have a 'strike'.
Answer and explanation:
Robert McNamara was Secretary of Defense of the United States in the years 1961 and 1968 during the Kennedy administration, at which time the Vietnam War took place.
In 1962, its geopolitical strategy was chosen by the American administration, said strategy was about a military containment plan regarding the use of nuclear weapons.
The McNamara doctrine called for the peaceful continuation of business with the Soviet Union and thus terminated the war conflict.
C) From deciphering the writing they left behind
Scientists now use cross fertilization.
I believe it's group identity.
Group identity filled with several criterias that must be held by an individual to be considered as a member of social group.
For example, mensa could be considered as a social group. And in order to reproduce new group member, that individual shall have an iq of 150 and above.