[Rosie] a settlement -- (as in 'place where people live'?) NO
[Raak] a group of people -- NO, although there is a relationship between a group of people and the answer.
[Dandalf] Geographic connection -- NO, depending on what you mean by that. The answer is more common in some places than others, but it would be too misleading to answer 'yes'.

[Rosie] to do with death -- NO.

[Raak] to do with religion -- NO

To clarify: Religion, or things to do with religion, can be related in a particular way to The Answer On The Card, but is The Answer to do with religion (or its things) more than to do with other things? NO. This is what I meant in my answer to "to do with art" and "to do with mathematics". Keep going, though.

[Dandalf] is it the environment? -- NO.

[Chalky] an emotion -- NO.

[Chalky] a hobby or pastime -- NO.

[Inkspot] a human element required -- fundamentally YES
[Projoy] if it's not something you can do, is it something you can be -- NO... *audience wakes up and makes encouraging murmurs*
[Dandalf] Science -- NO.

[Raak] Thought -- NO... thought is more closely related to this than most of the previous answers, but it's still a fair way off.

Two further clarifications: I have come across this in a work of fiction, but it is not really from fiction. And some people may involve this in a hobby or pastime, but I wouldn't classify the words on the card as a hobby or pastime. I'm not being intentionally vague, honest...

[Tuj] something spiritual -- NO

(beats me what the mineral connection would be, in that case, but since we're floundering, it's probably worth a shot or two in the dark!)

[Projoy] a family -- NO.
Wanna hint?

(i.e. one does)

[Projoy] It is definitely not something one does, in the way that one does not "do" a door, or one does not "knitting" or "biology textbook". The answer is still abstract, however.

Looking at it, knitting, even if in the sense of a noun, is not a great example. Apologies if I've been too pedantic. I hope you get the idea.

[Tuj] Ethics - NO
[Chalky] a skill - NO, although a measure of skill is certainly related to its existance.

(a measure of = an amount of some kind of)

[Tuj] something the brain can do -- NOt strictly, although activity of the brain is usually required. *a smattering of claps from the audience*
[Inkspot] is the vegetable a plant -- NO would be least misleading.
[Chalky] to with being funny/a sense of humour -- NO. Hmmm, there is a humour component in the work of fiction I mentioned earlier. But in the main, NO.
[Irouléguy] is the mineral water -- NO would be most helpful here.