All about water!

The world's biggest ocean is _______ _____.

Which of the following is the definition for water stores?

• Water stores are places where water is contained in and can be categorised as freshwater and saltwater stores

• Water stores are places where rainwater is contained in and can be categorised as freshwater and saltwater stores

• Water stores are places where water is contained in and can be categorised as freshwater and rainwater stores

• water stores are places where water is contained in and can be categorised as rainwater stores and snowstores

River source marks the point where a river begins, while the river _____ marks the place where a river flows into another water body.

Name a river in Singapore.

Which of the following is the definition of groundwater?

• Groundwater is water found near lakes.

• Groundwater is water found below the surface of the earth.

• Groundwater is water found below the surface of the earth. Water enters the ground through pores in the soil due to gravity.

• Groundwater is water replenished by the rain.

Describe what transpiration is.

The process where warm moist air cools as it rises and changes into water droplets is known as?

• Precipitation

• Condesation

• Evaporation

• Surface runoff

Type the water budget equation. Net change in storage = ?

Which of the following describes a river flood?

• River floods are typically caused by sustained heavy rainfall, or meltwater produced when snow and ice start to melt in the spring season. the large amounts of rainwater and meltwater enter streams and tributaries which then flow into rivers. the water level in the rivers rises rapidly and it eventually overflows the banks, flooding the surrounding areas.

• River floods are typically caused by river overflowing the banks.

• River floods are caused by exceptionally heavy rainfall over a short period of time. these floods often occur in dry areas where there is not enough soil or vegetation to allow rainwater to infiltrate the ground. therefore, most of the rainwater that falls onto the ground becomes surface runoff which quickly floods low-lying areas.

a _______ is a period of little to no rainfall in a specific area.