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Active volcanoes are those volcanoes in the country that has erupted within the last 600 years. PHIVOLCS lists how many active volcanoes in the Phiippines?

Based on the character of eruption, volcanic activity and volcanic areas are commonly divided into how many major types?

Mount Pinatubo was a dormant volcano for how many years?

How many major climate zones are there based mainly on temperature?

How many constellations were listed and tabulated in star charts by Ptolemy until the end of the 16th century?

Arrangement of stars in a group forms pictures like the Big Bear where there are ___ stars in the tail and ___ stars across the bear’s back.

The Egyptians also contributed to the rise of astrology when they devised a calendar containing ___ months of ___ days each with ___ days added at the end of the year.

Identify the correct acronym of PHIVOLCS

Which of the following the correct acronym of IAU?

CFCs means _____