Final answer:
The agency responsible for tracking typhoons in the PAR is PAGASA, and the speed of Typhoon Grasya, traveling 186 km to reach Bislig City in 3 hours, is calculated to be 62.0 kph.
Step-by-step explanation:
The agency that tracks the activities of typhoons entering the Philippine Area of Responsibility (PAR) is the Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA). This means that for the first question, the correct answer is D. PAGASA is responsible for monitoring weather conditions, including typhoons, which are of critical concern given the Philippines' location within the Western Pacific's major typhoon belt.
As for the question pertaining to the speed of Typhoon Grasya, we calculate speed using the formula speed equals distance divided by time. Given that the typhoon is 186 km away from Bislig City and its landfall is expected in 3.00 hours, the speed of the typhoon would be:
Speed = Distance / Time
Speed = 186 km / 3.00 h
Speed = 62.0 kph
Therefore, the correct answer is C, which is 62.0 kph.