Which of the following is of great importance to the existence of plants?

Soil conservation is achieved through?

A. mulching, terrace farming and tree-felling B. sensible tillage, tree-felling and bush burning C. scientific farming, crop rotation and bush burning D. sensible tillage, crop rotation and mulching Correct Answer: Option D – sensible tillage, crop rotation and...
Which of the following is of great importance to the existence of plants?

The two primary causes of ocean currents are?

A. differential algae development and sunlight penetration B. differential salinity and temperature variation C. variation in evaporation and coral development D. location of settlements and sea-level pressure Correct Answer: Option B – differential salinity and...

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