Today we are using natural resources maximumly. Which of the following options correctly explain the natural resources?
A. Resources made not by humans but nature and are used by all living organisms.
B. Resources are made by humans and used by all living organisms.
C. Resources are made naturally but not used by any organisms.
D. None of the above

Hint: Anything that is useful and provides worth to human life is referred to as a resource. Air, water, food, plants, animals, minerals, metals, and anything else in nature that is useful to humans is referred to as a ‘Resource'. Each resource's worth is determined by its usefulness and other considerations. Natural resources and man-made resources are the two main forms of resources.

Complete answer:
Option: A - Natural resources are those that are present in the environment and developed without human interference and they are used by all life forms.
Thus, Option A is correct.
Option: B – Resources made by humans are called as man-made resources and they are not necessarily used by all life forms.
Thus, Option B is not correct.
Option: C – Natural resources are used by all life forms so the statement in this option does not comply with the correct information of natural resources.
So, Option C is also not correct.
Option: D – Since Option A is correct ‘None of the above’ cannot be correct.
Thus, Option D is also incorrect.

Hence, Option A is the correct answer.

Note:
Natural resources are materials derived from nature and utilised by all living things. They include natural resources (such as soil and water) as well as energy sources (such as coal and gas) that are used to meet human needs and desires. Natural resources are classified based on their exhaustibility into renewable and nonrenewable resources. Natural resources need to be conserved to make them available for the future.