Answer:
the substance that they are missing is called chlorophyll, which all green leaves have
Gravity. it pulls things down to the earth so it makes it easier to go where the gravity is pulling
Answer:
disease
Explanation:
The biotechnology has been developing very quickly in the past few decades, and its advancements have resulted in numerous benefits to the human kind. If the current trend of development of this field continues, it will probably be able to put an end to the diseases and make them a thing from the past. Through the biotechnology, the human immune system can be made much resilient than it is naturally, thus stopping the diseases from attacking it, or being able to cause damage to it. This has been one of the most desirable things for quite some time, and there's every chance that will happen in the future.
