How are nuclear reactions used to meet the world's energy needs? Both fusion and fission are used to generate electricity, but more fission reactors than fusion reactors are in use. Fission reactors are used to generate electricity , but fusion is not yet practical enough to be used. Both fusion and fission are used to generate electricity, but more fusion reactors than fission reactors are in use. O Fusion reactors are used to generate electricity, but fission is not yet practical enough to be used.

the answer is d. 74.02

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.

the transfer of heat by electromagnetic radiation is called thermal radiation . it is usually carried out by electromagnetic waves in an energy range just below the visible spectrum, which is the infrared range.

so the answer would be radiation.

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