5. Positive and Negative Impact of chemical industries.
Here are the positive impacts first:
=> It can discover a chemical product that can be helpful for us humans like physical beautification, medicines to a certain diseases and more that is beneficial to our health.
=> It can also help us learn more about the chemicals that is presents in our planet.
Here are the lists of the negative impacts:
=> Some Chemicals can be harmful to the nature and also to our body.
=> Some chemical can cause diseases especially those harmful ones.
Answer:
The correct answer to the following question is Drive-by hacking
.
Explanation:
Drive-by hacking is the type of hacking which comes under the cyberterrorism.
Drive-by hacking is the hacking where the hackers can access their data and steal their data, use their network services from some "safe" distance without going inside the company or an organization.
Drive-by download is the type of download of the malicious code into your mobile devices or the computers which occur by designed and it leave you to the cyberattack.
Answer:
This is the complete correct program:
#include <stdio.h>
#include<sys/types.h>
#include<unistd.h>
int value = 128;
int main()
{
pid_t pid;
pid=fork();
if (pid==0) /* child process */
{
value +=8;
return 0; }
else if (pid > 0) {/* parent process */
wait (NULL);
printf ("PARENT: value =%d\n" ,value); /* LINEA */
return 0;
}
}
The output of the LINE A is:
PARENT: value = 128
Explanation:
The fork() function used in the program creates a new process and this process is the child process. The child process is same as the original process having its own address space or memory.
In the child process the value of pid is 0. So the if condition checks if pid==0. Then the child process adds 8 to the value of its variable according to the following statement
value +=8;
Now the original process has value = 128. In else if part the parents process has the value of pid greater than zero and this portion of the program is of the parent process :
else if (pid > 0)
{ wait (NULL);
printf ("PARENT: value =%d\n" ,value);
return 0; }
So the value 128 is printed at the end in the output.
wait(NULL) is used to wait for the child process to terminate so the parent process waits untill child process completes.
So the conclusion is that even if the value of the variable pid is changed in the child process but it will not affect the value in the variable of the parent process.
Take it to the Apple Store and they will help you or you can go on their site and press "Forgot Apple ID." If you choose the second option you have to enter the first and last name, and the email you used for the iCloud on the iPad.
