Match the mutation type in Column I with its primary effect in Column II.

Column I (Mutation Type)	Column II (Effect)
P. Nonsense	1. Single amino acid change in the polypeptide.
Q. Frameshift	2. Premature termination of translation.
R. Missense	3. Alteration of the reading frame for all downstream codons.
S. Silent	4. No change in the primary structure of the protein.

TLS Online TPP Program

#Question id: 40538

#Environmental Science

Match List I (Pollutant) with List II (Primary Impact):

List I	List II
A. SO2	1. Neurotoxicity
B. Mercury	2. Acid rain
C. Nitrates	3. Methemoglobinemia
D. CFCs	4. Ozone depletion

TLS Online TPP Program

#Question id: 40539

#Environmental Science

Match List I with List II regarding air pollutants and their effects

List I (Pollutant)	List II (Effect)
A. Peroxyacetyl nitrate (PAN)	1. Reduces oxygen-carrying capacity of blood
B. Sulphur dioxide	2. Causes photochemical smog
C. Nitrogen dioxide	3. Bronchial irritation and acid rain
D. Carbon monoxide	4. Pulmonary edema and reduced lung function

TLS Online TPP Program

#Question id: 40540

#Environmental Science

Match the heavy metal with the associated disease

List I (Metal)	List II (Disease/Effect)
A. Mercury	1. Minamata disease
B. Cadmium	2. Itai-itai disease
C. Lead	3. Black foot disease
D. Arsenic	4. Anemia and neurological damage

TLS Online TPP Program

#Question id: 40541

#Environmental Science

ASSERTION–REASON 

Assertion (A):Biomagnification is more pronounced in aquatic ecosystems.

Reason (R):Persistent organic pollutants are fat-soluble and resistant to biodegradation.

TLS Online TPP Program

#Question id: 40542

#Environmental Science

ASSERTION–REASON QUESTION

Assertion (A):Eutrophication leads to hypoxic conditions in water bodies.

Reason (R):Decomposition of algal biomass consumes dissolved oxygen.

TLS Online TPP Program

#Question id: 40543

#Environmental Science

ASSERTION–REASON QUESTION

Assertion (A):Ozone in the troposphere acts as a greenhouse gas.

Reason (R):Tropospheric ozone absorbs longwave radiation emitted by Earth.