Soil compaction results from a. the reduction or elimination of pore space in soil b. the weight of heavy machinery on soil c. livestock walking over soil d. all of the above

The correct answer is D. All of the above.

Soil compaction is termed as the compression of particles of small to small volume which are then reduces their pore space size which is being available for water and air.

Soil compaction can result from;

1. Elimination or reduction of pore space in soil.

2. Heavy weight machine on soil.

3. Livestock walking over the soil.

Soil compaction can result to decrease in crop production and increase in erosion of soil.

T he purpose of the soil compaction is that large water pressure which is build up and causes soil liquefy in the time of earthquake.

All of these.

Explanation: Compaction of soil can be defined as the compression of the soil particles into smaller volume which will reduce the pore space and it will provide more space for water and less space for air.

It can be done by many ways. Some of the ways are suggested here. The reduction of pore space in the soil.

The weight of heavy machinery on the soil will reduce the pore space of the soil.

The livestock walking also reduces the pore space of the soil and helps in soil compaction.

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.

lesson summarykaryotypes a genome is the full set of all the genetic information that an organism carries in its dna. chromosomes arebundles of dna and protein found in the nucleus of a eukaryotic cell.