Question 1 (1 point) [06.01]
How are physical and chemical changes similar? (1 point)
a
Neither can change the number of atoms of each element that are present.
b
Neither can cause chemical bonds to break.
с
Neither can result in a phase change.
d
Neither can cause a substance to give off heat or light.
Question 201

c

explanation:

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min