A. Plants and animals do not interact with each other.
Plants and animals HAVE to interact with each other in an ecosystem. Some animals may need to eat certain plants to stay alive. Plants also help provide c02 for the atmosphere.
Tarbela dam is the largest Earth filled dam in the world. It is buolt on river Indus, in Pakistan. Its primary use is electricity generation and supply water for irrigation by storing flows during the monsoon period and use it during the low flow period in the winter . Due to the lower rate of sedimentation, the useful life time of the dam has increased to 85 years.
Here, the option that is not valid is
D. It will be able to supply irrigation water for centuries.
Answer :
are techniques for conserving soil resources and fertility
Explanation :
In simple words, Planting multiple crops in appropriate combinations throughout the identical field is known as intercropping. Crop rotation is the process of changing the crops cultivated on a farm from one harvest to the next. On steep hillsides, terracing provides flat floors for plants to collect rainfall and decrease desertification.
