Class 9 English Unit 8 The Alternative Energy Source Notes

A. Match the followings.

a. fleet = a group of something

b. inflatable = capable of being filled with air

c. harness = to control and use the force strength of Something

d. vane = a flat plane that is moved by wind

e. skyscraper = a very tall building

f. fission = the act or process of splitting the nucleus of an atom

g. bountiful = large in quantities

B. Find the antonyms.

a. endless = finite

b modern = traditional

c. covered = revealed

d. fragrant = odourless

e. bound = autonomous 

f. inadequate = bountiful

C. Match the following.

a. Idea I = solar energy

b. Idea II = energy through body movement

c. Idea III = wave energy

d. Idea IV = altaeros energy

e. Idea V = altaeros energy

f. Idea VI = energy through the fusion process

D. Answer these questions. 

a. How did JAXA prove the viability for the idea of space-based solar energy?

= JAXA proved the viability of the idea of solar energy by successfully converting 1.8 kilowatts of electricity into microwaves, after which they wirelessly became them a distance of 50 metres.

b. What do we need to generate energy through our body movement?

= In order to generate electricity through our body movement, We simply need to wear a system that collects. and converts the movement energy generated through our body movement.

c. In what way, are Idea III and V similar?

= Idea III and IV are similar because both ideas emphasize on the conversion of one form of energy into another form.

d. How can hydrogen be used as the source of energy?

= We can see hydrogen as the the source of energy by separating it from other elements. This gas yields high energy with no urity.

e. Why do floating turbines seem more effective than lower mounted turbines?

= Floating turbined seems more effective than tower mounted turbines because floating turbines produced doubles the energy as tower mounted energy.

f. Why is the fusion process environmentally friendly?

= We can say that the fusion process is environmentally friendly because it emits no pollution or green house gases and has not threat of nuclear meltdown.

g. What does ITER stand for?

= ITER stand for International Thermonuclear Experimental Reactor.