1.
Option A
2.
Natural things are obtained naturally on the earth while man-made are made by man.
3.
The surrounding or conditions in which we live is called the environment.
4.
Option B
5.
Option C
6.
Living things are those that have lives and non-living do not have lives.
7.
Option A
8.
A food chain shows how living things depend on each other. Bigger depends on smaller ones and so on. It keeps on decreasing as we keep going the next level.
9.
Option B
10.
Option A
11.
Climber plants are weak and soft stem, they need support to stand and grow straight.
12.
Option B
13.
Option A
14.
Option B
15.
Option D
16.
Option A
17.
Plastic bottles, chemical release into rivers and water bodies, using fertilizers in the plants, etc
18.
Option B
19.
Option B
20.
Option A
