Danville: Grade 4 (1)

What is the main function of a watershed?

• To store minerals and ores

• To collect and channel water

• To provide habitat for ocean organisms

• To produce soil nutrients

Tags

VA.4.8.a

Which of the following is a characteristic of a mineral?

• It is made from decayed plants and animals

• It has a definite chemical composition

• It is always found in liquid form

• It can only be found in forests

Tags

VA.4.8.c

How do forests contribute to the health of the soil?

• By providing minerals and ores

• By preventing soil erosion

• By increasing ocean salinity

• By reducing the amount of sunlight

Tags

VA.4.8.d

Which of the following is an example of an interaction between plants and animals?

• A rock breaking down into soil

• A bird eating seeds from a plant

• Water flowing in a river

• A mineral forming in the earth

Tags

VA.4.8.b

What is a common interaction of organisms in the ocean?

• Trees absorbing carbon dioxide

• Fish cleaning parasites off larger fish

• Rocks forming from cooled lava

• Soil being eroded by wind

Tags

VA.4.7.c

Which of the following best describes an ore?

• A type of plant found in forests

• A naturally occurring solid material from which a metal or valuable mineral can be extracted

• A type of soil found in watersheds

• A type of animal that lives in the ocean

Tags

VA.4.8.c

Why are watersheds important for the environment?

• They are the main source of minerals

• They help in the distribution of water resources

• They are the primary habitat for ocean organisms

• They produce oxygen for the atmosphere

Tags

VA.4.8.a

What role do plants play in the ecosystem?

• They decompose rocks into minerals

• They produce oxygen and provide food for animals

• They increase the salinity of ocean water

• They form the base of the ocean food chain

Tags

VA.4.8.b