Living Environment Translated Burmese 2014 | Page 75
သက္ရိွသက္မဲ့သတၱဝါအားလုံးစုစည္းေနထုိင္ရာအရပ္ကို
အီကိုစစ္စတန္ဟုေခၚသည္။
4. Freshwater
Ecosystems:
a. Temperature,
light,
salt,
and
dissolved
oxygen
are
important
factors.
အပူခ်ိန္၊အလင္း၊ဆားႏွင့္ေပ်ာ္၀င္ျပီးေသာေအာက္စီဂ်င္မ်ားသ
ည္အဓိကပါ၀င္သည္။
b. Rivers,
streams,
lakes,
ponds,
and
wetlands
are
freshwater
ecosystems.
ျမစ္၊စမ္းေခ်ာင္း၊ေရကန္၊ေရကန္ေလးႏွင့္စိုစြတ္ေသာေျမမ်ားသ
ည္ေရခ်ိဳေဒသတြင္ပါ၀င္သည္။
c. Human
activities
can
pollute
aquatic
(
water)
ecosystems.
လူတို့ဧ။္စည္းကမ္းမဲ့အမွုိက္သရိုက္စြန့္ပစ္ျခင္းသည္ေရခ်ိဳေဒသ
ကိုညစ္ညမ္း ပ်က္စီးေစသည္။
5. Wetlands
are
areas
that
are
covered
with
water
most
of
the
year.
They
are
found
in
areas
that
lie
between
land-‐masses
and
water.
စိမ.ေၿမေဒသသည္ႏွစ္တိုင္းအားျဖင့္ေရမ်ားျဖင့္ဖံုးလြမ္းတတ္ျကသည္။
္
အမ်ားစုသည္ေျမျကီးႏွင့္ေရမ်ားျကားတြင္ကိန္းေအာင္းေလ့ရိွျကသည္။
6. Saltwater
(
Marine)
Ecosystems: ေရငန္ေဒသ၊ေရငန္ေဂဟစနစ္။
a. Saltwater
ecosystems
include
open
oceans,
coral
reefs,
seashores,
and
estuaries.
ေရငန္မ်ားၿဖစ္ေသာ သမုုဒၵရာ၊ သႏၲာေက်ာက္တန္း၊
ပင္လယ္ကမ္းေၿခ၊ၿမစ္ဝတို.ပါဝင္သည္။
b. About
95%
of
Earth’s
water
contains
dissolved
salts.
ကမာၻေပၚရွ၉
ိ
၅ရာခိုင္ႏွဳန္းေသာေရတိ.သည္ဆားမ်ားၿဖင့္ေပ်ာ္ဝင္ေနသည္။
ု
c. Organisms
that
live
on
seashores
have
adaptations
that
enable
them
to
survive
large
changes
in
temperature,
moisture,
and
salinity.