Answer:
thanks for your question.
human and animal are directly or indirectly dependent on plants .The reason is very clear. look that, to alive human and animal needs oxygen which is very important for our and animal life. We can't live without it. And this important things are come from plants. By taking carbon-dioxide and suns light from our environment they makes the important things which is oxygen. Without they also gives us fruit, food and protection from natural disaster
Step-by-step explanation:
that's why human and animal are directly or indirectly dependent on plants