- A
coral reef is an
underwater ecosystem characterized by
reef-building corals.
Reefs are
formed of
colonies of
coral polyps held
together by
calcium carbonate...
- or a
temperate rocky intertidal reef.
There is a
variety of
biotic reef types,
including oyster reefs and
sponge reefs, but the most m****ive and widely...
- The
Great Barrier Reef is the world's
largest coral reef system,
composed of over 2,900
individual reefs and 900
islands stretching for over 2,300 kilometres...
-
greenhouse gas emissions. In some cases,
artificial reefs have been
developed as artworks.
Artificial reefs generally provide hard
surfaces where algae and...
- that
fringing reefs are the
first kind of
reefs to form
around a landm**** in a long-term
reef growth process. The
largest fringing coral reef in the world...
- Look up
reefing in Wiktionary, the free dictionary.
Reefing reduces the area of a sail,
usually by
folding or
rolling one edge of the
canvas in on itself...
- Vaal
Reefs is a gold
bearing reef which is
mined near the town of
Orkney in Dr
Kenneth Kaunda District Muni****lity in the
North West
province of South...
-
describe them as "annular
reefs enclosing a
lagoon in
which there are no
promontories other than
reefs and
islets composed of
reef detritus" or "in an exclusively...
-
species of
reef-****ociated
sharks which are
known by the
common name
reef sharks. In the
Indian and
Pacific Oceans:
Blacktip reef shark Grey
reef shark Whitetip...
-
Wreck Reefs:
atoll 25 by 5 km, area 75 km2, open on the North.
Islets found on the
reefs include Bird Islet, West
Islet and
Porpoise Cay. Cato
Reef: Cato...