The diagram above illustrates an ecological instrument. Study it and answer the question below;

A disadvantage of the abiotic factor measured by the instrument is that it

The diagram below is an illustration of an ecological instrument. Study it an answer the question below;

When the instrument is in use, it is usually? 

Soil with the finest texture is?

The position occupied by an organism in food chain is the

The depletion of the ozone layer will result in the earth surface receiving more