[Answer] On which of Earth's continents will you find most of the planet's fresh water?

Step 1 : Introduction to the question "On which of Earth's continents will you find most of the planet's fresh water?"

...According to the U.S. Geological Survey, over 68 percent of Earth's fresh water supply is located in ice caps and glaciers, with just over 30 percent found in groundwater. The thick ice sheet covering Antarctica is the largest solid mass of ice on the planet. This singular, enormous frozen structure contains about 90 percent of the fresh water on planet Earth. When taken as a whole (including water found in underground aquifers), only a fraction of a percent of freshwater is found in surface waters such as rivers, lakes, swamps and ponds.

[Answer] What percentage of Earth's surface is permanently covered with ice and snow?

Step 1 : Introduction to the question "What percentage of Earth's surface is permanently covered with ice and snow?"

...Snow cover can change dramatically with seasonal snow falls. During the cold of winter, up to 33 percent of the Earth's land mass may have snow cover. This is temporary, however. Permanent snow and ice cover is present on only 12 percent of the Earth's surface year round, with most of this found in the polar regions. The Earth's climate is a product of sunlight absorption by snow and ice, along with the land and sea. Snow and ice have a high ratio of reflected to transmitted sunlight (albedo.) Source: Education.SeattlePI.com

[Ans] What is the brightest star in the Earth’s night sky?

Step 1 : Introduction to the question "What is the brightest star in the Earth’s night sky?"

Sirius, also known as the Dog Star, is the brightest star in the night sky. It is almost twice as bright as Canopus, the next brightest star. Its name comes from the Greek word for scorching. It's actually a double star system, with a very bright primary and a dimmer secondary star. The reason why it is so bright in the sky is due to a combination of its luminosity and distance – at 6.8 light years, it is one of Earth’s nearest neighbors. Sirius is gradually moving closer to the Solar System, so it will slightly increase in brightness over the next 60,000 years.

[Answer] What is the brightest star in the Earth’s night sky?

Step 1 : Introduction to the question "What is the brightest star in the Earth’s night sky?"

...Sirius, also known as the Dog Star, is the brightest star in the night sky. It is almost twice as bright as Canopus, the next brightest star. Its name comes from the Greek word for scorching. It's actually a double star system, with a very bright primary and a dimmer secondary star. The reason why it is so bright in the sky is due to a combination of its luminosity and distance – at 6.8 light years, it is one of Earth’s nearest neighbors. Sirius is gradually moving closer to the Solar System, so it will slightly increase in brightness over the next 60,000 years.

[Answer] What percentage of the Earth's active volcanoes call Japan home?

Step 1 : Introduction to the question "What percentage of the Earth's active volcanoes call Japan home?"

...Japan's location has a lot to do with the over 100 active volcanoes that call the island nation and its surrounding waters home. Japan sits at the convergence of four tectonic plates: the North American, the Eurasian, the Philippine and the Pacific. This gives Japan more volcanoes that just about any other country on the globe. These account for around 10 percent of the world's active volcanoes. Japan is also frequently hit with earthquakes, some of them devastating. Source: VolcanoDiscovery.com