................... is the system that includes rocks and heavy metals.

• Hydrosphere

• Biosphere

• Geosphere

• Atmosphere

A Frozen freshwater is called.................................

• Glacier

• River

• Gulfs

• Ponds

Water runs across the land is an example of an interaction between hydrosphere and …………….

Some animals live in streams such as catfish and salmon (trout) ................

• X

The largest saltwater ecosystems that cover large parts of earth's surface..................

Nitrogen and oxygen are gases that make most of the …………………

• Biosphere

• Hydrosphere

• Geosphere

• Atmosphere

which of the following is found between porous of rocks below Earth's surface..................

• Glacier

• Ground water

• Ocean

• Water vapor

A river always flows from an area of lower altitude to an area with higher altitude..................

• X

Rainwater is the only reason for weathering and erosion of rocks on the Earth's surface..................

• X

Kelp, starfish and Moses fish live in ………..which are considered the largest saltwater ecosystems on the Earth.

• Oceans

• Lakes

• Streams

• Rivers