New Generation IV nuclear plants such as the pebble-bed nuclear reactor features
A) a combination of nuclear fusion and fission in a single design.
B) cooling with liquid helium, smaller scale and less nuclear fuel in the reaction chamber.
C) a design that uses a mechanical source of X-rays for power.
D) designs based on the Fukushima Daiichi plant in Japan.
Question 2
The natural modes of nitrogen fixation are
A) various industrial processes of making fertilizers.
B) fossil fuel combustion.
C) lightning and bacterial fixation in soils.
D) denitrification and various industrial processes.
Defences against herbivory. Plants possess an array of unusual and powerful chemicals, including
Plants
reproductive system in plants
Nuclear energy
Estimates of carbon stored in the plants and soils of different ecosystems.
Typical features of expression vectors for E. coli