Mind Mission Water: Water on and in Earth

What percentage of the Earth's water is saline?

• 70%

• 97.2%

• 39%

• 100%

What is the main source of water for rivers during dry periods?

• Rainfall

• Groundwater seepage

• Lakes

• Oceans

How does water from precipitation contribute to rivers?

• It evaporates quickly

• It flows directly into oceans

• It seeps into the ground and recharges aquifers

• It stays on the surface

What is the role of groundwater in the water cycle?

• It is not important

• It only affects oceans

• It helps recharge rivers

• It evaporates immediately

How many times is water in rivers renewed in 64 days?

• 1 time

• 4 times

• 5 times

• 6 times

What is the main benefit of groundwater in desert areas?

• It evaporates quickly

• It provides water where visible water is scarce

• It is not useful

• It only supports plant life

How many times is water in the atmosphere renewed in 48 days?

• 1 time

• 3 times

• 6 times

• 12 times

In rivers: It takes _____ days for the river to renew 5 times.

In rivers: It takes _____ days for the river to renew 1 time.

In rivers: It takes 96 days for the river to renew _____ times.