how do bats find food in the dark
why do elephants have big ears
whats in a camels hump
can dogs see colour
why do ducks float
how do owls hunt at night
why are peacocks such show offs
why do birds migrate
why dont sleeping birds fall off their perches
can flying fish really fly
how do sharks find prey
what animals live in the deep sea
why do crabs walk sideways
how many whales are there in the ocean
why dohoneybees dance
why are ants so busy
why do lice live in our hair
how does a spider make a web
whats inside a snails shell
why do snakes stick out their tongues
what is an axolotl
how long does a tortoise live
do reptiles have cold blood
do crocodiles really cry
why do dogs lick people
how do rubies form
why do some animals have whiskers
how do insects walk on water
how is air purified
how does wireless charging work
how do computers identify junk mail
how are mirrors made
how do ultrasound scans work
why dont touchscreen phones work with gloves on
how is blood pressure measured
why do mosquitoes bite you
what is a meteor shower
what shape is the milky way
how long could you survive on the moon
why do stars twinkle
how do you locate dark matter
what is the difference between an asteroid and a comet
why does power steering work
why is gold so valuable
how do pearls form
which animal has the best sight
why does water turn white
which is the worlds tallest waterfall
can phones work underwater
how do barcodes work
what is ram
how do kettles boil water
why do we sneeze
how does our vision work
how does detergent get our clothes clean
why do we sweat
what is a vacuum
how do painkillers cure headaches
what is a photon
why do our muscles ache
what is solar wind
whats inside the sun
what is the carina nebula
why is pluto not a planet
why does the earth spin
why does saturn have rings
how do planes fly
what is the moon made of
what is a shooting star
could people live on the moon
how big is the earth
whats inside the earth
why do volcanoes erupt
what is lightning
what is a tornado
where does the sun go at night
why are leaves green
are all snakes poisonous
how can fishes breathe under water
whats inside a pyramid
what was a gladiator
who were the vikings
why does metal get rusty
why does fruit rot
where does electricity come from
what is a rainbow
what is an echo
how does a remote control work
why do i get hungry
how many bones are in my body
why doesmy heart beat
can plants live without sunlight
how do plants feed
how are insects useful to plants
why do plants need water
can a plant reproduce itself without making seeds
why are some plants parasites
how do climbingg plants climb
how do the leaves of a waterlily float
why do some plants have thorns
why does a stinkhorn stink
why does moss grow in a thick mat
how do ferns grow
do plants have clocks
can plants eat insects
why do plant stems grow up and roots grow down
why do trees have bark
why do some trees produce sticky gum or resin
what are deciduous trees
how can you tell the agee of a tree
how does a banyan tree grow so big
why do leaves turn yellow red and brown in autumn
how high up can plants grow
which plant has the biggest flowers
which plant has the longest leaves
which plant lives the longest
which tree grows fastest
which is the most poisonous fungus
which tree grows most slowly
which were the first farm crops
why do we breathe faster when we exercise
why is it better to breathe through your nose
why is breathing harder on top of a mountain
what can a chest x ray show
why do we pant after running fast
why do we yawn
what do white blood cells do
where in the body gets the most blood
why do cuts stop bleeding
what does blood do
what do red blood cells do
how long does it take to digest a meal
what are the bodys waste substances
why do we have an appendix
what does the liver do
what do the kidneys do
what are teeth made of
how do teeth grow
what is hair for
why is hair different colours
what makes hair curly
why do we have eyelashes
how does skin heal itself
how does skin tan
what are nails made off
what is a reflex
how do nerves pass on messages
what are our five senses
what are hormones
which is the most important gland
what makes up the nervous system
what gives your eyes their colour
are two eyes better than one
what makes our eyes water
why do some people need glasses
how do our ears hear
what causes deafness
how do our ears help us balance
how many things can we smell
how does a cold spoil our sense of smell
how is skin able to sense things
how do blind people read with their fingers
what causes pain
which are the most sensitive parts of the body
why do we itch sometimes
which features do we inherit from our parents
how is a babys sex decided
what is dna
what are chromosomes
what is a gene
what is ageing
does long life run in families
how do we grow
what is puberty
what triggers the changes of puberty
what is a multiple birth
what is a test tube baby
what can a newborn baby sense
what happens in the first week of life
what are twins
how quickly does the embryo develop
when is a baby an embryo
what is contraception
what happens if the egg is fertilised
where does fertilization take place
what is the menstrual cycle
where do sperm come from
what does the brain look like
what is the brain made of
what does the brain do
how is the brain protected
how is the brain like a computer
what are the main parts of the brain
why are most people right handed
are girls brains different to boys
what is the mind
how many things can we remember
how do we learn
what is instinct
what are conditioned reflexes
why are humans so intelligent
is intelligence inherited
what is personality
where do our feelings come from
how do babies communicate
how quickly do we learn language
why do we need to sleep
why do we dream
what is an optical illusion
what causes mental illness
what is depression
can phobias be cured
how can objects be electrically charged
what is a conductor
what are superconductors
what is an insulator
how does electricity travel
what is an electrical circuit
what is a dry battery
what does a magnetic field look like
where does our electricity come from
how does a fuse act as a safety device
what makes a light bulb glow
what is an integrated circuit
why do microchips work so quickly
how does a computer use its memory
with the help of an example define micro economics
define macro economics with the help of an example
define opportunity cost
why does an economic problem arise
write two characteristics of resources
what do you mean by scarcity
what do you mean by marginal opportunity cost
what do you mean by an economy
why is there a need for economizing of resources
why is ppc downward sloping from left to right
what does a rightward shift of ppc indicate
why does the problem of choice arise
why does ppc look concave to the origin
which factor lead to a shift of ppc towards right hand side
what does a point below ppc indicate
what does slope of ppc show
when allocation of resources is considered as inefficient
why does ppc look concave to the origin explain
what does a ppc show when will it shift to the right
does production take place only on the pp curve
why does an economic problem arise explain
why is a production possibilities curve concave explain
explain properties of a production possibilities curve
explain the problem of what to produce
what is marginal rate of transformation explain with the help of an example
explain the problem how to produce
explain the three properties of indifference curves
massive unemployment will shift the ppf to the left defend or refute
what is the opportunity cost of an input which has no alternative use
utility is directly linked with the usefulness of a commodity is it true or false give reason
in order to encourage tourism in goa indian airlines reduces the air fare to goa how will it affect market demand curve for air travel to goa
at certain level of output the marginal cost of a firm is above its marginal revenue can this be its equilibrium output
trendz produces both jeans and shirts how will an increase in the price of jeans affect the supply curve of shirts
a severe drought results in a drastic fall in the output of wheat analyze how it will affect the market price of wheat
what will be the effect on equilibrium price and equilibrium quantity of telephone instruments if china exports a large number of telephone instruments to india
both microeconomics and macroeconomics have same degree of aggregation defend or refute
law of demand is a quantitative statement comment
mc can be calculated both from total cost and total variable cost and is not affected by total fixed cost discuss
why ar curve under monopolistic competition is more elastic than ar curve under monopoly
how does a firm under monopolistic competition exercise partial control over price
why is number of firms small in an oligopoly market
demand and supply are like two blades of a pair of scissors comment
what is meant by economizing the use of resources
what do you mean by alternative uses of resources
what will be the shape of ppf when mrt is constant
unemployment in india is a subject matter of micro or marco eco give reason
what is meant by utility
how is total utility derived from marginal utilities
what is law of diminishing marginal utility
what will be the behaviour of total utility when marginal utility is zero
state condition of consumers equilibrium in respect of one good
define consumers equilibrium
what is meant by marginal rate of substitution mrs
what is meant by budget set
define indifference curve map
