Answer:
Nanoparticles do hold out much environmental promise. The same reactivity that makes them harmful in the body also means they can break down dangerous chemicals in toxic waste – or anywhere, for that matter. And their use in electronics drastically reduces power demand, which could cut greenhouse gases.
Answer: a) 
(b) 
(c) 
(d) 
Explanation:
The formal description of the given sets are as follows :-
a) The set containing the numbers 5, 9, and 27.
(b) The set that contains all the natural numbers less than 2.
(c) The set containing the empty string.
We know that in formal description, the empty string is denoted with 
.
Thus, the required set :
(d) The set containing nothing at all.
Answer:
You must evaluate information
Explanation:
The first step to thinking critically is to accept information only after evaluating it. Whether it's something read or heard, critical thinkers strive to find the objective truth. In doing this, these employees evaluate by considering possible challenges and solutions. This process of vetting new information and considering outcomes is called evaluation.
Ooh, ooh, ooh I know this one!
One advantage is that you don't have to make the entire layout of what you are doing from scratch. It is also time saving by not making you write everything.
<span>b. false; unlike clip art, you cannot resize a photograph
</span>
