ADVENTURE Day 13 -
Cruising the Caribbean Se
LOS CURSOS DE INGLES
GRATIS PREFERIDOS POR LOS HISPANOHABLANTES
MAKES THE COLORS OF THE SEA?
this paragraph and put the verbs in brackets in the SIMPLE PRESENT.
the human senses, the most obvious patterning of the surface water is
indicated by color. The deep blue water of the open sea far from land
is the color of emptiness and barrenness; the green water of the
coastal areas with all its varying hues,
(be) the color of life.
The sea is blue because the sunlight is reflected back to our eyes
from the water molecules or from very minuscule particles suspended in
the sea. In the journey of the light rays into deep water all the red
rays and most of the yellow rays of the spectrum have been absorbed,
so when the light
(return) to our eyes it is
chiefly the cool blue rays we
the water is rich in plankton, it
(lose) the glassy transparency
(permit) this deep penetration of
the light rays. The yellow, brown and green hues of the coastal waters
(be) derived from the minute
algae, and other microorganisms, so abundant there.
abundance of certain forms containing reddish or brown pigments may
cause the "red water" known from ancient times in many parts
of the world, and so common
(be) that condition in enclosed
(owe) their names to it - the Red
Sea and the Vermilion Sea are examples. The colors of the sea
(be) only indirect signs of the
presence or absence of conditions needed to support the surface life.
Other zones, invisible to the eye, are the ones that largely
(determine) where marine
creatures may live.