With thanks.

A heap of coconut-shell activated carbon granules

A broadcast video camera filming a lit television stage

A crisp masala dosa with sambar and chutneys on a banana leaf

A goods truck on a winding road through green monsoon fields

A laptop showing code beside a coffee mug against a warm orange wall

Amber glass spray bottles of kitchen and bathroom cleaner

Industrial workers in orange safety vests and helmets walking past a plant

Volumetric flasks of coloured chemical solutions on a laboratory bench

Baby clothes on wooden hangers above rows of small shoes

A woman in a red and orange silk saree in front of saree shelves

Smiling schoolboys in uniform waving at the camera

Many hands painted red coming together to form a heart

Close-up of dark activated carbon filling the frame

A conical heap of fine black powdered activated carbon

Split coconut shells drying in the sun

A coconut palm grove beside paddy fields in Tamil Nadu

White piped meringues heaped on a plate beside a cup of coffee

Whole cashew kernels scattered on a white surface

South Indian filter coffee in a brass davara and tumbler

A lab technician in a hairnet and yellow gloves checking a sample

A salt pan worker raking salt at sunset in Thoothukudi

Rows of green fishing boats moored in a calm harbour

A dramatic sunset sky reflected in calm water at Thoothukudi

A hand drawing a white kolam pattern on the ground