Which of the following groups of factors is completely abiotic?
Salinity, tide, plankton, turbidity
Temperaure, pH, soil, insect
Wind, altitude, humidity, light
Conifers, wind, pH, rainfall
Soil, water, bacteria, salinity
Correct answer is C
No explanation has been provided for this answer.
Which of the following is NOT regarded as a pollutant on land or in the air?
smoke
noise
sulphur (IV) oxide
carbon monoxide
nitrogen
Correct answer is E
No explanation has been provided for this answer.
An anemometer is an instrument for measuring
relative humidity
altitude
wind speed
turbidity
salinity
Correct answer is C
No explanation has been provided for this answer.
Green plants are important in the ecosystem because they are
primary consumers
producers
decomposers
secondary consumers
scavengers
Correct answer is B
No explanation has been provided for this answer.
4, 3, 2, 1
4, 3, 1, 2
3, 1, 4, 2
1, 2, 3, 4
3, 1, 2, 4
Correct answer is B
No explanation has been provided for this answer.