Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What percentage of Earth's water is freshwater?
💡 Hint: Consider what proportion of the planet's water isn't saline.
Question 2
Easy
Name the primary sources of freshwater.
💡 Hint: Think of where you could find water that's not salty.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What percentage of Earth's water is freshwater?
- 2.5%
- 30.1%
- 68.7%
💡 Hint: Remember the overall distribution of water.
Question 2
Groundwater makes up what percentage of total freshwater?
- 30.1%
- 68.7%
- 0.3%
💡 Hint: Think about where we get drinking water from extensively.
Solve 3 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
How might the global reliance on surface water lead to conflicts, especially in river systems that cross multiple countries?
💡 Hint: Consider historical examples, like the Nile River disputes.
Question 2
Design a sustainable community initiative to promote water conservation and educate residents about their local water sources.
💡 Hint: Think about how to engage the community practically and informatively.
Challenge and get performance evaluation