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Unit 2 Basic Agricultural Science Test.
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Unit 2 Basic Agricultural Science Test.
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Unit2
Basic
Agricultural
Science
Test
________________________
resulted
in
large
populations
leaving
the
country
in
order
to
live
and
work
in
the
cities.
-
correct
answer-Industrilization
_________________________
is
a
process
that
plants
undergo
to
make
sugars,
which
are
necessary
for
the
plants'
survival
and
for
the
survival
of
animals
that
feed
on
the
plants.
-
correct
answer-Photosynthesis
________________management
is
important
to
arid
countries
like
Iraq
because
without
proper
conservation
methods,
crops
would
quickly
die.
-
correct
answer-Water
A
genetic
engineer
might
work
on
a
project
to
create
a
sunflower
that
can
grow
without
sunlight.
-
correct
answer-True
A
local
farm
wants
to
provide
educational
seminars
for
grade-school
children.
Which
of
the
following
laws
would
provide
the
farm
the
funds
to
provide
this
service?
-
correct
answer-Smith-Lever
Act
A
vertical
farm
is:
-
correct
answer-experimental
farming
inside
a
controlled
dome
AFNR
AND
POPULATION
IMPACT
ON
THE
ENVIRONMENT
Occupational
Hazards
In
1789,
just
seven
years
after
the
end
of
the
American
Revolution,
the
new
nation's
nearly
four
million
farmers
represented
fully
90
percent
of
the
country's
workforce.
Two
hundred
years
later,
the
Bureau
of
Census
identified
just
2.9
million
farmers,
comprising
just
over
2.5
percent
of
the
nation's
total
workforce.
Yet,
today's
farmers
are
producing
more
crops
per
acre
than
at
any
other
time
in
history.
Advances
in
technology
and
improvements
in
agricultural
practices
have
made
it
possible
for
farmers
to
increase
annual
crop
yields.
In
2007,
the
United
States
Department
of
Agriculture
reported
that
American
farmers
sold
$297
billion
in
agricultural
products
in
2007,
much
of
it
exported
for
use
in
other
countries.
However,
these
figures
can
be
a
bit
deceptive.
Nearly
60
percent
of
all
of
U.S.
farms
had
sales
of
less
than
$250,000
which,
after
subtrac
-
correct
answer-
After
thousands
of
years
buried
deep
under
the
Earth,
an
organism's
remains
may
convert
to
__________
a0
fuels.
-
correct
answer-fossil
AGRICULTURAL
AND
NATURAL
RESOURCES'
NEGATIVE
ENVIRONMENTAL
EFFECTS
Natural
resources
are
those
resources
that
humans
use
but
cannot
create;
they
only
exist
because
of
natural
processes.
There
are
a
vast
number
of
natural
resources.
Some
examples
include
ecosystems,
natural
soils,
water,
renewable
energy
sources
like
wind,
the
sun,
and
flowing
water,
nonrenewable
energy
sources
like
coal,
oil,
natural
gas,
and
minerals.
Changes
in
population
and
lifestyle
have
increased
demand
on
natural
resources.
Let
us
focus
on
the
impact
of
extracting
and
using
natural
resources
like
coal,
oil,
natural
gas,
trees,
and
minerals. Recall
that
agriculture
contributes
approximately
80
percent
of
the
pollution
that
is
given
off
each
year.
Agriculture
is
also
a
major
consumer
of
our
nation's
energy.
However,
agriculture
is
necessary
to
sustain
life.
Let
us
look
at
some
of
the
problems
that
agriculture
and
the
extraction
and
use
of
natu
-
correct
answer-
AGRICULTURE
PERSONNEL
SUPPORT
SYSTEMS
"A
farmer
friend
of
mine
told
me
recently
about
a
busload
of
middle
school
children
who
came
to
his
farm
for
a
tour.
The
first
two
boys
off
the
bus
asked,
'Where
is
the
salsa
tree?'
They
thought
they
could
go
pick
salsa,
like
apples
and
peaches.
Oh
my.
What
do
they
put
on
SAT
tests
to
measure
this?
Does
anybody
care?"
—Joel
Salatin,
Folks,
This
Ain't
Normal:
A
Farmer's
Advice
for
Happier
Hens,
Healthier
People,
and
a
Better
World
Although
agriculture
contributes
about
5
percent
of
the
U.S.
economy's
Gross
National
Product
(GNP),
the
health
and
well-being
of
agriculture
is
essential
to
the
overall
health
of
the
economy.
Simply
explained,
GNP
is
a
statistic
which
reflects
the
total
value
of
all
of
the
goods
and
services
produced
in
the
country
over
a
period
of
time,
minus
what
we
spend
on
goods
and
services
imported
from
other
countries.
A
growing
amount
of
the
farm
products
raise
-
correct
answer-
Black
bears
consume
berries,
leaves,
nuts,
and
meat.
Black
bears
are
which
of
the
following
types
of
consumers?
-
correct
answer-omnivore
By
using
hot
water
to
generate
electricity,
both
geothermal
energy
and
_______
a0
energy
are
able
to
cut
down
on
the
amount
of
nonrenewable
resources
used.
-
correct
answer-solar
Carbon
dioxide
is
released
when
which
of
the
following
phenomena
occur?
-
correct
answer-photosynthesis
CAREER
CORNER
Hydrologist
Hydrologists
solve
the
problems
of
quantity,
quality,
and
availability
of
water.
Reflection
Which
of
the
best
practices
do
you
think
will
make
the
biggest
positive
impact
on
the
environment?
Think
about
other
best
practices
that
you
could
propose.
What
are
they?
How
do
you
think
using
renewable
energy
sources
will
help
the
environment?
Hydrologists
are
scientists
that
are
experts
in
water.
They
study
and
advise
on
water
quality,
water
availability,
water
problems,
and
other
issues
relating
to
water.
Hydrologists
work
with
government
agencies,
private
companies,
landowners,
and
as
consultants.
A
career
as
a
hydrologist
could
involve
working
in
the
office
and
in
the
field.
It
would
most
likely
include
research
and
excellent
problem-solving
skills. To
become
a
hydrologist,
you
need
a
college
degree.
You
would
most
likely
need
a
master's
degree
or
a
doctoral
degree.
Some
areas
of
study
that
-
correct
answer-
CAREER
CORNER:
MARINE
BIOLOGIST
Marine
biologists
study
life
in
the
sea.
There
are
many
different
areas
of
study
within
the
field
of
marine
biology.
Most
marine
biologists
specialize
in
one
or
more
of
these
specific
areas.
Some
examples
include
marine
mammals,
fish,
marine
invertebrates,
marine
microorganisms,
marine
conditions,
marine
ecology,
and
more.
Marine
biologists
could
work
in
the
lab,
in
the
field,
for
the
government,
a
private
company,
a
research
institution
or
university,
an
aquarium,
or
another
place
associated
with
the
marine
environment.
To
become
a
marine
biologist,
you
would
need
to
earn
a
bachelor's
degree
in
marine
biology
or
associated
field.
Most
positions
would
require
that
you
have
a
master's
degree
or
a
doctoral
degree.
-
correct
answer-
CAREERS
IN
AGRICULTURAL
RESEARCH
AND
DEVELOPMENT
When
the
environment
is
damaged,
it
may
recover
on
its
own,
or
it
may
require
human
intervention
to
recover.
At
times,
the
environment
will
be
changed
permanently
and
will
not
recover.
Sometimes,
the
best
recovery
strategies
are
those
that
prevent
damage
in
the
first
place.
These
strategies
are
called
mitigation
strategies.
Let
us
look
at
some
recovery
and
mitigation
strategies.
Reducing
Damage
Through
Biotechnology
Mechanical
Engineer
Mechanical
engineers
design
and
develop
machines
and
systems.
They
may
work
on
a
project
to
develop
a
picker
or
tractor
or
may
work
on
the
design
and
development
of
a
system
to
process
crops
after
they
are
picked.
Mechanical
engineers
need
to
understand
physics,
math,
engineering,
design,
and
more.
After
completion
of
an
engineering
program,
a
mechanical
engineer
may
work
in
a
research
and
development
department
for
a
number
of
differ
-
correct
answer-
Chemicals
that
interfere
with
an
organism's
endocrine
system
are
known
as
which
of
the
following?
-
correct
answer-endocrine
disruptors
Communities
of
plants
and
animals
are
called
biomes.
-
correct
answer-True
CYCLES
IN
NATURE
Soil
and
water
are
important
natural
resources
that
we
cannot
live
without.
In
order
to
maintain
quality
soils
and
clean
water,
we
rely
on
some
important
cycles
in
nature.
Let
us
take
a
look
at
three
of
these
cycles:
the
carbon
cycle,
the
nitrogen
cycle,
and
the
water
cycle.
The
Carbon
Cycle
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