17. Which part of the bird lets it fly high in the sky?

Which part of our body is affected by the use of alcohol?

1.  Who helped the ladybug get matches in the minuscule valley of lost ants

which of the following statements accurately describes nuclear fusion reactors?

a) Fusion reactions require very high temperature

b) Nuclear fusion occurs in Earth's crust.

c) Fusion reactions can fuse three isotopes of hydrogen into one helium.

d) Fusion would be a more advanced technology if governments had provided some money for research or if attempts to develop it were more than just a few years old.