Answer:
Ransomware is malicious software that infects your computer and displays messages demanding a fee to be paid in order for your system to work again. It has the ability to lock a computer screen or encrypt important, predetermined files with a password.
Explanation:
:)
data declaration means a variable which contain data value and it can be declared as integer, float, character, double, boolean (data types).
example:
int r;
char name;
float g;
double k= 23.34;
The SQL is used to change a table's structure by:
The use of the SQL ALTER TABLE command.
<h3>How is it done?</h3>
The SQL ALTER TABLE command is known to be that which is often used to alter the structure of an existing table.
It is known to help one to be able to add or delete columns, make or destroy indexes, alter the kinds of existing columns, rename columns or the table itself.
Note that It can also be used to alter the comment for any kind of table and type of the table therein.
Learn more about SQL from
brainly.com/question/25694408
#SPJ1
Driving on under-inflated tires is very dangerous. If tires pressure is too low, too much of the tire's surface area touches the road, which increases friction. The more friction you have, the more heat is applied to the tires. Then, too much heat will make them overheat which can cause tread separation and, yes, blowouts. Therefore, the answer is true.
B. it can save time by allowing you to quickly fill cells