3 One main characteristic that is used to place plants and animals into different big groups is
a) their method of movement c) how they reproduce
b) their ability to make their d) the habitat in which they live
own food​

the answer for sodium is 0.186

the answer for rubidium is 0.251

14 days is the half-life of phosphorus-32

answer: any goods being imported from another country may be subject to issued by the federal government are tariffs

explanation:  

tariffs are a tax on anything that are imported from abroad. government use them to protect and boost their local industries and the thought is that they encourage consumers to buy local instead of importing and they will hope will protect jobs and economy in the country that implements them  

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.

: )