What has been practiced for years to achieve physical and mental well-being?

Do you consider passive smoking is more dangerous than active smoking? Why?

Match the correct group of disease, causative agent, and symptoms.

Name of Disease	Causative agent	Symptoms
$1$. Malaria	$i$. $Entamoeba \text{ } histolytica$	$p$. Diarrhoea and flatulence
$2$. Elephantiasis	$ii$. $Plasmodium \text{ } ovale$	$q$. Enlargement of lymph vessels and nodes
$3$. Amoebiasis	$iii$. $Brugia \text{ } malayi$	$r$. Arthralgia and anaemia

Match the following columns:

Column-$I$	Column-$II$
$(1)$ Typhoid	$(x)$ Plasmodium
$(2)$ Malaria	$(y)$ Rhino virus
$(3)$ Pneumonia	$(z)$ Haemophilus influenzae
$(4)$ Common cold	$(v)$ Streptococcus pneumoniae
	$(w)$ Salmonella typhi

Which of the following is/are inconsistent with a healthy individual?
$(1)$ Increased efficiency
$(2)$ Higher productivity
$(3)$ Increased longevity of people
$(4)$ Increase in infant and maternal mortality rates

What is the mechanism of action of antibiotics?