The first vertebrates appeared in a period of the $Palaeozoic$ era,called:

Match List-$I$ with List-$II$ with respect to the chronology of the evolution of life forms:

List-$I$	List-$II$
$A$. About $65 \text{ mya}$	$I$. Jawless fish probably evolved
$B$. About $500 \text{ mya}$	$II$. The dinosaurs suddenly disappeared from the earth
$C$. About $350 \text{ mya}$	$III$. Seaweeds and few plants probably existed
$D$. About $320 \text{ mya}$	$IV$. Invertebrates were formed and became active

Choose the correct answer from the options given below:

In which period is the beginning of agriculture (plant cultivation) believed to have occurred?

During which of the following periods did the dinosaurs become extinct?

Select the option that shows the correct sequence of plant evolution.
$(I)$ Chlorophyte ancestors
$(II)$ Rhynia-type plants
$(III)$ Psilophyton
$(IV)$ Tracheophyte ancestors

The $Jurassic$ period of the $Mesozoic$ era is characterized by: