Answer:
Natural systems are already in place while man made systems were created by humans manipulating things in some way.
Explanation:
man made: human created
natural systems: existed without interference
Answer:
chemistry is very important because everything you do is chemistry . our body is made up of chemicals . chemicals reactions occurs when be breathe ,eat , etc . All matter is made of chemicals so that chemistry is very important in our life
Answer:
In opp friend function is a function that gives the same access to private and protected data. It is declared in class that is granting access.
Explanation:
#include<iostream.h>
using namespace std;
class Sum
{
int a, b, add;
public:
void input()
{
cout << "Enter the value of l and m:";
cin >> l>>m; taking input from users
}
friend void add(sum &t);
void display()
{
cout << "The sum is :" << z;
}
};
void add(sum & p)
{
p.add = p.a + p.b;
}
int main()
{
sum p1;
p1.input();
add(p1);
p1.display();
return false;
if(display==5)
{
return true; //true is returned if sum is equal to 5
}
else //if they are not the same
{
return false;
}
}
Answer: Hyperpersonal communication
Explanation:
In this type of communication we have inter personnel communication mediated through computers such that there is more scope for textual messages than face to face communication.
