Environment Which Has Been Modified by the Human Activities Is Called

Q. Harmful changes made in the environment due to human activities are called:

Q. 'Golden rice' has been genetically modified to meet human nutritional requirements. Which of the following statements correctly describes golden rice?

Q. A substance which is not present in nature, but added to the atmosphere due to human activity and causes an adverse effect on the environment is called:

Q. Comment on a few human activities which affects and destroys the environment.

Q. Polar bears are just one species whose biodiversity has been affected by human activities Which of these is the greatest threat to the polar bears?