Biology
Ozone hole refers to

increase in the thickness of ozone layer in troposphere
decrease in the ozone layer in troposphere
hole in ozone layer
decrease in thickness of ozone layer in stratosphere

ANSWER DOWNLOAD EXAMIANS APP

Biology
Neurospora is used as genetic material because

meiotic products are linearly arranged in the form of ordered tetrads
is a diploid fungus
it has short life cycle of 10 days
the product of single meiosis can be easily analysed

ANSWER DOWNLOAD EXAMIANS APP