our environment class 4

Study of how living things interact with each other and with their nonliving environments

• Sustainability
• Ecology
• Environmental Science
• Renewable Resource

Waste from our homes and factories are dumped into rivers, lakes, and seas, causing ____.

• Air pollution
• Water pollution
• Land pollution
• Waste

Increasing levels of carbon dioxide in the air is believed to cause ___.

• Global Warming
• Water Pollution
• Non-biodegradable waste
• Recycling

Another name for global warming is ___.

• Climate change
• Global Hotflash
• Solar Wind
• Climate Heating

___ is waste obtained from plants and animals.

• Biodegradable waste
• Non-biodegradable waste

What is the definition of Biotic factors?

• Dead things
• plants
• Living things or organisms
• soil

A collection of organisms that belong to different populations but all live in the same area and interact with one another.

• Population
• Ecosystem
• Community
• Ecosphere

Food chains are interconnecting food webs.

• true
• false

What does every food chain start with?

• producers
• sun
• consumer
• decomposers

An organism that gets energy from breaking down dead organisms, non-living material or waste is a(an) ___________.

• producer
• consumer
• decomposer
• autotroph