Sand Dunes, Coral, Mangroves (coasts part 4)

Describe the pH of coral?

• Acid

• Alkaline

• Neutral

What is the name for the starfish which is destroying large amounts of coral?

• Crown of thorns

• Ring of spikes

• Necklace of spines

• Pendant of barbs

Which of these is the term for a sand dune which is closest to the sea and still forming?

• Embryonic

• Fledgling

• Nipper

• Youthful

What is the name for plants such as mangroves and marram grass which thrive in salty water?

• Halophytes

• Xerophytes

• Hydrophytes

• Mesophytes

What is the name of the hollow between dunes?

• Dip

• Slack

• Basin

• Sag

What is the name for the tiny algae which coral have a symbiotic relationship?

• Phytoplankton

• Pitoplankton

• Potoplankton

• Platoplankton

What is the name for the mangrove roots which keep the trees partially out of the water?

• Prop roots

• Support roots

• Buttress roots

• Truss roots

What is the name for the raised pores on mangroves that allows them to increase carbon dioxide intake whilst they are out of the water?

• Lenticels

• Renticels

• Centicels

• Penticels

Which TWO are terms for adding sand to sand dune systems to counteract erosion?

• Beach nourishment

• Beach supplement

• Beach replenishment

• Beach replacement

How does ocean acidity damage reefs?

• Coral bleaching

• Coral waxing

• Coral grating

• Coral staining