Practice Ocean Salinity - 3.5 | 3. Hydrosphere | ICSE Class 9 Geography
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.

3.5 - Ocean Salinity

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.

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does ocean salinity measure?

💡 Hint: Think about what is dissolved in ocean water.

Question 2

Easy

Name one factor that increases ocean salinity.

💡 Hint: Consider areas that are hot and dry.

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 is the average salinity of ocean water?

  • 20 ppt
  • 35 ppt
  • 45 ppt

💡 Hint: Look for a common figure used to describe average conditions.

Question 2

True or False: High evaporation leads to decreased salinity in ocean water.

  • True
  • False

💡 Hint: Think about what happens when water evaporates.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A researcher measures ocean salinity in different regions. If the salinity is 30 ppt in a river mouth and 38 ppt in a hot desert region, explain the potential reasons for this contrast.

💡 Hint: Think about the geographic features of each location.

Question 2

Discuss how an increase in global temperatures might modify both evaporation and freshwater runoff and the resulting implications for ocean salinity.

💡 Hint: Stay focused on the cause and effect relationship between climate change and salinity.

Challenge and get performance evaluation