Because the United States imports about 4 billion barrels of crude every year, at best, the Arctic National Wildlife Refuge could provide us with nearly one hundred years worth of oil. True False

Answer:

A dilute solution has less amount of solute in the solvent. Therefore, the correct answer to the question is option B.  

Explanation:

A solution is defined as a mixture of the solute and solvent. The concentration of solution depends upon the solute as well as solvent. A solution is known as to be dilute when there is less amount of solute and more amount of solvent.

A solution is said to be consulted when there is more amount of solute and less amount of solvent. Therefore, we can see that concentration of the solution is dependent upon the solute amount. In a solution a solute is present in in little less amount as compared with the solvent.  

Answer:

D.

Explanation:

Your hypothesis can and will most likely change during the activity.

Answer:

In the modern classification system birds are in a separate class from reptiles, but fossil evidence shows they have common ancestors.

Birds refer to the group of organisms which are endothermic in nature, have feathers, beaks, four-chambered heart, high metabolic rate, lay hard-shelled eggs and lightweight skeletons.  

In biological classification, they are classified under the class Aves.

Reptiles are four-limbed organisms which come under the class Reptilia.

However, biological and fossil evidence show that birds and reptiles shared common ancestors. It is believed that birds have evolved from the reptiles. Most of the scientists believe that birds are the specialized subgroup of theropod dinosaurs.