Read the information and complete the passage given below:
Global warming ______ the world. It ______ disturbances. There is a ______ countries and islands.
If we want to save our planet, we __?__ . We have to use methods to create ecological balance
otherwise it ______ .
A must not be late
B must create ecological
C threat to many
D must check it
Answer is A as we must not be late to save Earth and D says to check it but around most people already know that global warming is a bad thing to happen to our Earth.
Ans 4:
Class : Class 9
How can we check an Earthquake? We can check after it has hit that too by a Seismograph. It should be A.