> > Biology MCQs > Plant And Soil Science MCQs

Plant And Soil Science MCQ

Organisms contribute to soils formation by ________.

Warm temperatures and abundant moisture will cause faster weathering.

Water expands as it freezes, causing the crack walls to be pushed apart.

Rocks reacting with organic acids from plants

None of these

Answer

Correct Answer: None of these

Note: This Question is unanswered, help us to find answer for this one

________ is a soil texture in which none of the three main soil separates dominates the other two.

Adobe

Humus

Loess

Loam

Answer

Correct Answer: Loam

Note: This Question is unanswered, help us to find answer for this one

Most atmospheric free nitrogen is cycled to earth by means of ________.

Assimilation through plants

Weathering

Rain

Mining

Answer

Correct Answer: Assimilation through plants

Note: This Question is unanswered, help us to find answer for this one

Roughly one half of the volume of an ""average"" soil type is composed of ________.

Organic material

Clay

Pore spaces

Cations

Answer

Correct Answer: Pore spaces

Note: This Question is unanswered, help us to find answer for this one

Cellular respiration occurs within the _________ in a cell.

Chloroplast

Golgi bodies

Mitochondria

Nucleus

Answer

Correct Answer: Mitochondria

Note: This Question is unanswered, help us to find answer for this one

The only type of growth in most monocots is ____________________.

By translocation

By transpiration

Primary growth

Secondary growth

Answer

Correct Answer: Primary growth

Note: This Question is unanswered, help us to find answer for this one

Surface ocean currents ___.

Are driven by winds

Form large rotating gyres in the major ocean basins

Are influenced by Coriolis effect

All of these

Answer

Correct Answer: All of these

Note: This Question is unanswered, help us to find answer for this one

The fali compound was formed in the shape of a circle for the purpose of ____________.

Alignment with objects of cosmic significance

Grain production

Breeding livestock

Security

Answer

Correct Answer: Alignment with objects of cosmic significance

Note: This Question is unanswered, help us to find answer for this one

You might find _____ in the arctic.

Hydrophytes

Mesophytes

Xerophytes

None of these

Answer

Correct Answer: Xerophytes

Note: This Question is unanswered, help us to find answer for this one

Cytokinesis refers to ________.

Division of chromosomes

Division of cytoplasm

Division of nucleus

None of the above

Answer

Correct Answer: Division of cytoplasm

Note: This Question is unanswered, help us to find answer for this one

The weathered layer of loose inorganic material overlaying unfragmented rock below is ________.

Separates

Regolith

Clay

Peds

Horizons

Answer

Correct Answer: Regolith

Note: This Question is unanswered, help us to find answer for this one