In eukaryotes, which of the following modifications is made to a primary transcript prior to its transport out of the nucleus?

TLS Online TPP Program

#Question id: 40536

#Environmental Science

Consider statements about leachate formation:

1. Moisture infiltration contributes to leachate generation.

2. Decomposition products dissolve into percolating water.

3. Proper liners eliminate leachate formation entirely.

Correct statements:

TLS Online TPP Program

#Question id: 40537

#Environmental Science

On hazardous waste management:

1.Secure landfills isolate toxic materials.

2.Mixing hazardous waste with municipal waste reduces toxicity.

3.Treatment aims to stabilize harmful constituents.

Choose Correct option:

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.