Unit 7: Ecological Systems

Words in this game

• adventureOur trip to the jungle was a big adventure.
• coral reefMany colorful fish live in a coral reef.
• deterHigh fences deter people from entering the park.
• ecologicalPollution can cause serious ecological problems.
• ecosystemA pond is a small ecosystem.
• extinctDinosaurs became extinct millions of years ago.
• foreign speciesA foreign species can harm local plants and animals.
• glacierThe glacier is melting because the Earth is warmer.
• grasslandZebras and lions live on the grassland.
• hot springWe relaxed in a hot spring in the mountains.
• huntingHunting has reduced the number of some animals.
• illegalIt is illegal to cut down trees in this park.

Questions

1. Tigers are ___ of disappearing because people destroy their forests.

   • in danger
   • in front
   • in need
   • in time
   Show answer

   in danger

2. If we protected the coral reef, many fish ___ survive.

   • are
   • did
   • will
   • would
   Show answer

   would

3. If people stopped illegal hunting, which would happen?

   • Fewer animals would die.
   • Forests would disappear.
   • Glaciers would grow warm.
   • More animals would die.
   Show answer

   Fewer animals would die.

4. Which sentence is correct?

   • The glacier is danger of melting.
   • The glacier is in danger melting.
   • The glacier is in danger of melting.
   • The glacier is in danger to melt.
   Show answer

   The glacier is in danger of melting.

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