Over Time,the Total Amount of Nutrients Such as Carbon and Iron

question 4

Multiple Choice

Over time,the total amount of nutrients such as carbon and iron present on the Earth increases slightly by their addition from

• A) meteoric matter from space.
• B) volcanic activity.
• C) nutrient recycling.
• D) electromagnetic radiation.

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Definitions:

Crop Failures

Situations where agricultural crops do not grow as expected due to various factors like drought, pests, or disease, leading to a significant loss in yield.

Cultural Ideal

A widely accepted standard or model of excellence specific to a culture.

Leptin-deficient

Refers to a condition or state where there is a lack of leptin, a hormone that regulates energy balance by inhibiting hunger.

Metabolism

The set of life-sustaining chemical reactions in organisms for converting food to energy, building proteins, and eliminating waste products.