Answer:
It is important to classify the millions of species on Earth because it makes study of organisms easier. Classification occurs on the basis of similarities and differences that is present among the organisms. Organisms are placed in one group if they are similar in characteristics. For example, those organisms which are placed in animals have the ability to move from place to place and unable to make their own food.
<span>The era in which we now live is Cenozoic. The Phanerozoic is the eon in which we now live. It began 541 million years ago. However, the question is about the era in which we live. The Phanerozoic eon is divided into 3 eras: 1. the Paleozoic era - 541-252 million years ago; 2. the Mesozoic era - 252-66 million years ago; 3. the Cenozoic era - 66 million years ago until now. Thus, the era in which we now live is the Cenozoic era.</span>
Answer:
Option (B)
Explanation:
A delta is usually defined as a contrasting geological landform that forms the mouth of a river channel, and where there is an abundant supply of sand, clay and silt-size particles. The deltas are the places where the river finally mixes with seas or oceans. These areas form a flat lowland that is comprised of highly fertile soil and is suitable to carry out agricultural activities.
For example, the Mississippi River forms a delta when it flows into the Gulf of Mexico and is surrounded by rich and fertile soil.
Thus, the correct answer is option (B).