The age of most ancient geological formations is estimated by
1 Potassium-argon method
2 Ra-Si method
3 C14method
4 Uranium-lead method
Answers were Sorted based on User's Feedback
Reaction of alcohol, with a carboxylic acid is known as 1 Substitution Reaction 2 Addition reaction 3 Esterification 4 Hydrogenation
What does the Haversion central canal in each osteon contains?
which among the followings is found chlorophyll ?
1.how many bones are there in our human body? 2.who invented the aeroplane? 3.the full form for h2o is water 4.the name which is heavier is gold 5.name the symtom which is to cure for night blindness?
WHY WE SMELL A SCENT AFTER RAIN?? BUT RAIN WATER IS PUREST FORM OF WATER WHICH IS ODOURLESS.
Which are the research centres of department of atomic energy?
infra-red rays were first detected by? the intensity level of sound is measured in? the material used for a fuse wire should? radioactivity is a property of? what is the source of electric energy in an artificial satellite? the following is used as a lubricant in heavy machines? supher, bauxite , graphite, phosphorus
what are the advantages of interrupt and exception?
The element nickel is a 1 Magnetic metal 2 Radioactive metal 3 Non magnetic metal 4 Complex element
How long can arihant stay underwater?
What are the divisions of food according to the functions it performs ? Describe them
Rayon is chemically 1 Glucose 2 Amylase 3 Cellulose 4 Pectin