When the earth was formed it had an atmosphere with
Hydrogen, Oxygen and Nitrogen
Water Vapour, Hydrogen and Oxygen
Oxygen, Carbondioxide and Nitrogen
Water Vapour, Ammonia and Methane
Correct Answer :
D. Water Vapour, Ammonia and Methane
Related Questions
Small pox is caused by
bacteria
fungus
virus
algae
Which one of the following is both an exocrine and an endocrine gland?
Gastric glands
Pancreas
Salivary glands
Liver
Rh+ blood is due to genes which are
dominant
recessive
codominant
neutral
The principal reason why it is better to have two eyes than one is that
by having two eyes, one can distinguish colours more easily
by having two eyes, one can easily see in the dark and dim light
this gives the man a type of vision known as mosaic vision
this enhances depth perception in the humans
What are the symptoms of 'Pellagra'?
Colour blindness
Rickets
Patches of skin
Soft bones
Genes are made of
Carbohydrates
Proteins
Fats
Nucleotides
Which of the following contains the highest protein content per gram?
Groundnut
Soyabean
Apple
Wheat
The drug Ergot is obtained from
Alga
Fungus
Bacteria
Virus
The country's first 'brain bank' that can store up to 300 human brains has been opened at
Alleppey
Bengaluru
Bhubaneshwar
Mumbai
Eye is an organ that can be called as
Phonoreceptor
Thigmoreceptor
Photoreceptors
Rheoreceptor
Green plants synthesise carbohydrates by the
holozoic method
holophytic method
saprophytic method
parasitic method
The part of the brain in Control of Voluntary muscles is
cerebellum
medulla oblongata
pons
cerebrum
Malaria is transmitted from one person to another by
bad air
flies
anopheles mosquito
culex mosquito
Agroecology relates
crops and productivity
crops and environment
crop productivity and physiology
crop resistance to climatic changes
Calcium and phosphorus assimilation will depend on sufficient intake of
vitamin B complex
vitamin D
vitamin A
vitamin C
The hypothesis that living matter originated in the past from non-living matter is supported by
Fossil records
Miller's experiments
Pasteur experiment
Spallanzeni experiment
Blood is a kind of
epithelial tissue
connective tissue
nervous tissue
cartilage
Geotropism is reaction of plants to the stimulus of
earth
light
sound
gravity
Bio indicators are
stains
pH indicators
weather indicators
soil indicators
The scientist who discovered the blood groups is
Landsteiner
TH Morgan
William Harvey
Darwin
Blood pressure is measured by
Auxanometer
Stethoscope
Sphygmomanometer
Kaleidoscope
Dialysis is used when there is a failure of
heart
lungs
liver
kidneys
The 'germ theory of disease' was propounded by
Joseph Lister
Robert Koch
Louis Pasteur
Jacob Heule
Under the immunisation programme's Govt. of India is providing vaccination to prevent some vaccine-preventable diseases. Which of the following is NOT one of them?
Tuberculosis
Diphtheria
Tetanus
Plague
The protoplasm of a child is exactly the same as that of its
mother
father
grandfather
identical twin
The age of a tree can be determined by
counting the number of annual rings
thickness of the bark
the bulk of the tree
the number of leaves
Dwarf plants can be made to attain their normal stature by applying
IAA
Ethylene
Gibberelins
Cytokinins
The layer of stagnant water in which light penetrates is called
Aphotic
Euphotic
Epilimnion
Disphotic
Lamarck's theory of inheritance of acquired characters was challenged by
August Weismann
Hugo de Vries
Herbert- Spencer
Carl Linnaeus
The grouping o( blood is based on substances called
antibodies
antigens
antitoxin
enzymes