Question

std-8
subject-ss
chapter -2
board -cbse​

Answer 1

Answer:

1. River

3. Ozone

5. CO 2

Fill in the blanks:

1. Earth

2. Water and plants

3. Humans and animals

4. Oxygen and carbon dioxide

True/False:

1. True

2. True

3. False

4. False

Match:

1. Residence of all living organisms including humans

2. Sphere of many gases

3. Combination of four sphere