Data Analysis Quiz | OceanRemote Education

1 What does a sudden drop in soil moisture indicate?

A) Sensor is broken B) Plants are using water or soil is draining C) It rained D) Temperature dropped

2 If soil moisture decreases by 5% every day, how many days until it reaches 30% starting from 60%?

A) 3 days B) 6 days C) 10 days D) 15 days

3 What action should you take when soil moisture stays above 80% for 3 days?

A) Water more B) Add fertilizer C) Check drainage - possible waterlogging D) Nothing

4 How can you use historical soil moisture data?

A) Predict future watering needs B) Only for records C) Cannot use historical data D) Only for temperature

5 What is a good alert threshold for soil moisture?

A) Alert below 30% B) Alert above 90% C) Alert when exactly 50% D) No alerts needed

6 Why is it important to look at moisture trends, not just single readings?

A) One reading might be inaccurate B) Trends show direction of change C) Single readings are useless D) Both A and B

7 What does combining soil moisture with weather data help you do?

A) Predict irrigation needs more accurately B) Make sensors work faster C) Reduce data usage D) Increase battery life