Because their origins are not known.
Answer:
A theory should be supported by a substantial body of evidence
Explanation:
The species occupied grasslands and tallgrass prairies of the Upper Midwest and Northeast, but as most grasslands and prairies have been lost, degraded, or fragmented by conversion to other uses it is now endangered throughout its range
Answer:
Citronella oil
Explanation:
In Ernest Hemingway novel Camping Out he tells in a short snippet about the vacation of people who camp to cut monthly expenses and have fun outdoors, but nothing goes as planned. People are plagued by mosquitoes and other insects that make the experience unpleasant. He satirizes that the devil created mosquitoes to make it difficult for people to stay out of town, just to be able to continue to influence them. Fortunately this can be bypassed with citronella oil.
Answer:
c. conservation.
Explanation:
Conservation: In psychology, the concept of "conservation" was proposed by one of the renowned psychologists named Jean Piaget and is described in the preoperational stage of the cognitive development theory at the age of four-five years yet it completely develops around seven-eleven years in the concrete operational stage.
The process of "conservation" is explained as the tendency of an individual to gain the capability of thinking logically that leads an individual to believe that a specific quantity will remain same irrespective of the container's adjustment with respect to the size or shape.
In the question above, the given statement signifies the concept of "conservation".
