B. The number of sharks decreases. Explanation: hope it's help i learned about it and you too
Answer:
Mouse
Explanation:
Input devices allow users to input something in the computer. For example keyboard allows users to type on the computer, or mouse allows users to click.
On the other hand output devices allow computers to output data. For example speakers allow us to hear the outputs of a computer.
Answer: False
Explanation:Decision tree is the tree like structured flowchart which is used for the evaluation of the possible outcomes or result of the particular problem. It usually has two or more branches as the the result node . Decision tree are applicable to many problems for solving it. So, decision trees is not only applicable on certainty problems but also on other problems as well. Therefore the given statement is false.
Am not sure about no.2 and no.4
But am going to answer
1.true
3.true
5.true