erosion

The three R's of waste management are _______, _______, and ______

• Reuse, Reduce, and Remove

• Reduce, Reuse and Recycle

• Recycle, Reduce and Restore

• Reuse, Recycle and Rewrite

The process of turning water in to vapor is called _____

• Evaporation

• Condensation

• Sublimation

• Filtration

One way to improve soil erosion is by planting ____and _____ which holds the soil together

• Cover crops and trees

• Trees and grasses

• Grasses and terracing

• Afforestation

Air pollution can lead to serious health problems like _____and ____

• Asthma and diseases

• Dysentery and good health

• Cholera and fermentation

• All of the above

Acid turn red litmus paper to blue

• True

• Not proven

• False

• All of the above

Metamorphic rock is formed by pre-existing rock by ______ and _____

• Heat and temperature

• Pressure and temperature

• Heat and pressure

• Heat and barometer

A base that dissolves in water is called _____

• Sodium chloride

• Alkalis

• Potassium hydroxide

• Table salt

In a salt solution, the solute is _____ and _____ is the solvent

• Water and salt

• salt and sugar

• Salt and water

• Water and hydroxide

The reaction between acid and base is called______

• Fermentation

• Decomposition

• Neutralization

• Crystallization

______ turns red litmus paper _____

• Acid, Blue

• Base, Blue

• Base, Indigo

• Acid, Indigo