Answer:
ExplanatOverfishing occurs "when more fish are caught than the population can replace through natural reproduction," according to the World Wildlife . Once this occurs, the species is no longer "sustainable." Eighty-seven percent of all the world's fish stocks that we know about are at the "breaking point," according to the Environmental Defense Fund (EDF).
ion:
Answer:
Explanation:
so why are you doing sign up
Answer:
symmetric encryption
Explanation:
Asymmetric encryption uses 2 keys.
Answer:
Following are the program in java is given below
import java.util.*; // import package
public class Main // main class
{
public static void main(String[] args) // MAIN FUNCTION
{
Scanner scan2 = new Scanner(System.in);// scanner CLASS
System.out.println("Enter the Grade ");
char GRADE = scan2.next().charAt(0);//Read input by user
if(GRADE=='A' || GRADE=='B' || GRADE=='C' || GRADE=='D' || GRADE=='F' ) // //CHECK CONDITION
{
System.out.println("The GRADE is :" +GRADE); // display grade
}
else // Else block
{
System.out.println(" Input Error"); // display message
}
}
}
Output:
Enter the Grade
D
The GRADE is :D
Explanation:
Following are the description of program
- Create the object of scanner class for read the value of grade by the user .
- Read the value of "GRADE" variable by using the scanner class object scan 2
- Now check the condition in if block if the "GRADE" is 'A' or 'B' or 'C' or 'D' or 'F' then display the value of the GRADE variable otherwise else block is executed and input error message is displayed .
Answer:
The data transmission time will be 8 seconds (8.0s)
Explanation:
Using the formular:
T =A/S
T=Time = ?
Amount of Data = A = 2GByte
Speed = S = 2Gbps
The units of A and S are different
A is expressed in Bytes(B)
S is expressed in bits(b)
But :
1 Byte(B) = 8 bits(b)
T = A/S = 2GB/2Gb
since 1 Byte = 8 bits
T = 2 × G ×( B =8bits) / 2 × G × b
T = 2 × G × 8b / 2 × G × b
T = 2 × G × 8 × b / 2 × G × b
The common terms(2,G,b) cancel out
T = 8 seconds
