Questions

Plants grow in size both in height and in girth. Enlargement of cells already present cannnot contribute much to the growth. Only addition of more and more cells could increase the size of the plant considerably.

The aim of science is to get an understanding of the natural world, while the aim of technology is to use that understanding to improve people's lives. 

Hence, Advances in science can lead to new technology.

Wind is the flow of gases on a large scale. On the surface of the Earth, wind consists of the bulk movement of air. The force that generates wind is called as Pressure gradient force.

Usain Bolt is branded as "Fast Man on Earth".

Though this is essentially a Committee of the House of the people (Having 15 members from that house), by an agreement between the two houses, 7 members from the other Houses are also associated with this committee, in order to strengthen it.

Developing a habit of wearing your lifejacket or PFD at all times also reduces the chance that you will drown should you find yourself in the water unexpectedly.