Y.5 - Social Studies - Midterm Exam Review

_________ can cause problems to the soil

• Destruction

• Planting crops

• Road construction

• Irrigate

Using the same land every year to grow the crop is a good solution.

• True

• False

________ is a great way to reduce soil erosion and help soil to retain more water.

• Salinization

• Over-cultivation

• Pollution

• Terracing

Which one is a cause of soil to become worthless?

• Salinization

• Irrigation

• Cultivation

• Conservation

Which one is an agent that can cause soil erosion?

• Water

• Warm temperature

• Sun

• Clouds

Nothing can grow in a too acid or salty soil.

• True

• False

What does this picture show?

• Salinization

• Irrigation

• Conservation

• Terracing

What is this?

• Salinization

• Terracing

• Erosion

• Irrigation

What can farmers plant to protect the soil?

• waste

• terraces

• beans

• sprinklers

Over _____% of the Earth is covered with water, and nearly _____% af all water is salty.

• 80 / 95

• 70 / 97

• 70 / 95

• 80 / 97