पारंपरिक प्लास्टिक के कारण पर्यावरण अत्यधिक प्रदूषित होता है क्योंकि वे ________ होते हैं।

Prolonged exposure to extreme cold temperatures may result in tissue damage known as frostbite, which is categorized as a:

In the context of ecosystem energy dynamics, which of the following expressions correctly defines Net Primary Productivity (NPP)?