[Music]
it's
um sometime what if grass
disappeared oh no
now what will i have for dinner
oh um firstly if grass disappeared
public parks will lose their charm
people may stop
visiting them secondly if grass
disappeared
animals like cows and goats will have to
change their eating habits
thirdly grass is nature's way of
controlling soil erosion
if grass disappears we may start seeing
a lot of
soil erosion everywhere fourthly
if grass disappeared golf courses will
not
look lush green anymore expensive golf
clubs may reduce their admission rates
fifthly billions of insects consider
grass as their home
if grass disappeared we may find those
insects
living inside our homes sixly
sports like rugby football cricket etc
have lush green outfields
if grass disappeared players may stop
taking risks in order to avoid injuries
lastly if grass disappeared our gardens
may suddenly start
looking incomplete
why is grass green because green grass
blue sky and brown mountains look great
together
no first of all we were able to see
objects around us
because they reflect the sunlight
falling on them
sunlight is comprised of a full spectrum
of colors including violet
indigo blue green yellow
orange and red the color of an object
depends on which color of sunlight it
reflects
now strawberries have a pigment called
anthocyanin
it absorbs all colors except red it
reflects red
hence strawberries appear red
coal absorbs all colors and doesn't
reflect any
so it appears black now coming back to
the question
the grass appears green because its
cells have a special pigment called
chlorophyll in them chlorophyll absorbs
colors like
red and blue and mostly reflects green
as this reflected green color reaches
our eyes
we perceive the grass as green
topic osmosis why is grass killed if
salt is sprinkled on it
hey what are you doing don't eat the
grass
fine as always ignore me
[Music]
see i warned you earlier
hey wait you're making it worse
don't do that
look you spoiled it totally all right
don't cry i will tell you why this
happened
this happened because of a concept
called osmosis
osmosis is the diffusion or movement of
water molecules from a region of higher
concentration of water through a
semi-permeable membrane to a region of
lower concentration of water
[Music]
do you think osmosis took place when we
sprinkled salt on the grass
bingo you are right normally
osmosis does not take place on a
day-to-day basis because the
grass tries to keep the concentration of
water same inside and outside itself
through the process of transpiration
however when we sprinkled salt on the
grass the concentration of salt outside
the grass
increased and the concentration of water
decreased
as a result the water present inside the
plant started flowing
outside due to osmosis since most of the
water flowed out
the grass drooped down and eventually it
died
what if glass disappeared oh no
what will happen to my famous glass
statue
oh um some firstly if glass disappeared
tall flashy glass buildings will not
look that attractive anymore
secondly if glass disappeared mirrors
will also disappear
people who take hours to get ready in
front of mirrors will have
a lot of free time on their hands
thirdly
if glass disappeared smartphones
computers as well as television sets
will suddenly
stop working fourthly if glass
disappeared
many kitchenware items which are made of
glass will also disappear
fifthly if glass disappeared all of a
sudden windows will have big holes in
them
people may start finding birds
everywhere in the house
sixthly if glass disappeared people who
wear spectacles may have to immediately
book appointment with an eye specialist
lastly if glass disappeared bulbs and
tube lights will also disappear
a lot of places may suddenly go dark
what if paper disappeared oh
no now where will i give my
autographs oh i'm some
firstly if paper disappeared our good
old newspapers will
also disappear habitual readers of
newspapers will be severely disappointed
hmm secondly if paper disappears
books will also disappear children might
get extremely happy as notebooks
means no homework thirdly
if paper disappeared toilet paper as
well as tissue paper will be severely
missed by many
fourthly if paper disappeared sale of
pens as well as pencils may also go down
fifthly paper is an extremely important
part of packaging
if paper disappeared alternative
packaging solutions will have to be
found
hmm sixly if paper disappeared
creative people will try to find out
innovative solutions of solving this
problem lastly
if paper disappeared printers will also
be rendered useless
hmm what if elevators disappeared
no problem i'm some can
jump as high as he wants
oh lump sum firstly if elevators
disappeared
escalators will suddenly become
extremely popular
people may start installing them in
their homes
secondly if elevators disappeared
high-rise buildings may
lose their popularity people may start
vacating offices located on top floors
thirdly if elevators disappeared
single-story homes will start selling
like hotcakes
fourthly if elevators disappeared
getting to the top of eiffel tower
may remain just a dream for many
fifthly if elevators disappear hospitals
will be the most
impacted all the patients will have to
be shifted to the ground floor
lastly if elevators disappear creative
people may figure out innovative ways of
solving the problem
on the flip side if elevators
disappeared people have no option but to
climb stairs
they may start getting fitter
what if cotton disappeared oh no
um some famous tie will also
disappear oh um some
firstly it is estimated that
approximately 75
of worlds clothing products contain
cotton in some form
if cotton disappeared many people may
not be left with
much clothing hmm secondly
cottonseed oil is a cooking oil which is
derived from the seeds of cotton plants
if cotton disappeared chefs will be
extremely unhappy
thirdly cottonseed meal is a good
protein source for dairy cows
if cotton disappeared cows may go on a
hunger strike
fourthly many people prefer cotton bed
sheets
curtains as well as pillows if cotton
disappeared
interior decorators will have a tough
time pleasing their clients
fifthly many coffee filters are made
using cottage
if cotton disappeared many coffee lovers
may miss their morning
coffee lastly
millions of people are employed in the
cotton industry
if cotton disappeared unemployment rate
will
shoot up hmm
what if marble disappeared oh
no i was planning on making a marble
statue of the great ensem oh
i'm some firstly if marble disappeared
taj mahal the world famous monument
which is made of marble
will also disappear
secondly if marble disappeared
sculptures made of marble will also
disappear
museums will be in a state of shock
thirdly if marble disappeared expensive
marble floorings will also disappear
many lavish hotel properties may
suddenly lose their ratings
[Music]
fourthly marble is often used as a
cemetery marker
if marble disappeared there will be
confusion all around
[Applause]
fifthly lime which is prepared using
marbles is used to reduce
soil acidity if marble disappeared
agriculture industry will suffer
lastly marble is a favorite choice of
interior decorators
if marble disappeared interior
decorators might have a lot to think
about
hmm