0.3. Fill in the blanks,7marks a. A smartuses IoT to save electricity.
b. are devices that can sense , store and analyse signals from the body and display the information on the gadget and an app.
c. The full form of CSS is.
d. The syntax of CSS is made of
and.
e. CSS is used to beautify one particular tag.
f. Internet of Things makes use of connected devices, smartphones and.
g. track the number of steps a person has walked in a day.​

Write a method named addall that could be placed inside the hashintset class. this method accepts another hashintset as a parameter and adds all elements from that set into the current set, if they are not already present. for example, if a set s1 contains [1, 2, 3] and another set s2 contains [1, 7, 3, 9], the call of s1.addall(s2); would change s1 to store [1, 2, 3, 7, 9] in some order. you are allowed to call methods on your set and/or the other set. do not modify the set passed in. this method should run in o(n) time where n is the number of elements in the parameter set passed in.

Explain how email technologies enable the exchange of messages between users. find out the typical parts of an email address and explain each part.

What are some settings you can control when formatting columns?