Consider the following statements.

Assertion (A): Blue light can travel longer distances without appreciable loss by scattering than any other colored lights.

Reason (R): Blue light has highest wavelength in the visible spectrum of light.

In the context of the above, which of these is correct?

The apparent flattening of the Sun’s disc at sunrise and sunset is due to

Aerogels find potential application in

1) Improving drug delivery

2) Oil spill cleaning

3) Heat insulation materials for buildings

Select the correct answer using the codes below.

Consider the following statements.

1) Ammonia occurs naturally in the environment.

2) Ammonia causes soil acidification because it persists for years after its first application in the soil.

3) Excess of Ammonia in water bodies leads to eutrophication.

Select the correct answer using the codes below.

With reference to the advantages and disadvantages of chlorine disinfection of water, consider the following statements.

1) Chlorination of water is used to prevent the spread of waterborne diseases such as cholera based on the strong oxidizing properties of Chlorine.

2) Chlorination can lead to formation of harmful trihalomethanes (THMs) in the water supply.

Which of the above is/are correct?