2.BIG. Do humans kill every DANGEROUS animal?

Good question.

Man is the most dangerous animal on the earth - like any other animal when they feel threatened they will kill. Man has the resources to kill so a whole species, such that they become extinct. This is a significant problem for the tiger, where man is wanting to live in areas where the tiger lives.

Without education, man would annihilate all animals - hopefully, there are enough of us who care, and will support these dangerous animals. For example the world wildlife foundation actively help these dangerous endangered species.

http://www.wwf.org.uk/

But even when not directly threatened they still kill - for example for sport - fishing, big game shooting, bull fighting.

4.BIG. What transport will we have in the future?

This is a BIG question

It is very dependant on the type of fuel we have available to power our transport.

If there is no oil - how would we power today's cars, buses, trains etc. Also current transport forms are not good for the planet producing CO2.

Much talk of alternative fuels - for example, using oil from plants - the problem with this is there is not enough food in the world to feed everyone so it is really not a good idea to use the food to power transport.

Hydrogen power - this gas makes up 80% of the air, + is in water - so lots of it. When used, the only exhaust is water vapour.
See http://en.wikipedia.org/wiki/Hydrogen_vehicle for more information.

Power from the sun, using the sun rays to create electricity in solar panels.
See http://en.wikipedia.org/wiki/Solar_vehicle

The target will be for transport to be designed to be lighter and faster and hopefully more fuel efficient.

Some good ideas are on:

http://library.thinkquest.org/04oct/01249/

There are a few games in this website as well.