First choose a grid size by typing '30', '20', or '10'. A grid of that size lat/long will be placed on the map (so if you choose '20' the grid width and height will be 20 degrees). Then, double click on the grid square with the highest population within it (based on world 10km x 10km population density estimates). The highest-population remaining square will give you 100 points, all the way down to 0 for the one with the smallest population. Try to obtain the most points by successively double-clicking on the highest-populated grid square.
The object of this quiz is to adjust each circle's radius so it contains the target population shown at the right. When you click Start you will be shown a marker on a random populated world grid square (there are over 800K 10x10 km grid squares used for the data, courtesy of https://human-settlement.emergency.copernicus.eu/index.php). Also you will see an adjustable circle of radius 500 km to start. Adjust the circle's radius by dragging it until it contains the target number of people shown - this target will be between 2.5 and 250 million people. Then click submit. You are scored on how close your circle's population is to the target.
The object of this quiz is to fill in each blank flag with the correct colors for that country. When you click START you will be shown a country and 12 colors on the right, these include the flag's color and random colors not in that flag. Click on colors that represent at least 5% of that country's flag. If you click a correct flag color it will fill in on the flag and that color box will get a green border. An incorrect color will show with a red border. Complete all the colors in the flag to move on to the next country. Completing 10 countries will end the quiz.
You get points for correct answers and minus points for incorrect answers. Correct answer points vary based on the number of flag colors, flags with more colors can have a higher possible point total.
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Isnt it New Delhi, not just Delhi
New Delhi is the capital with a much smaller population, Delhi is the big city in the surrounding area.