A)
The rotation of Earth about its axis
Answer:
B) requires DNA polymerase and RNA polymerase
Explanation:
DNA replication is mainly maid by the DNA polymerase and RNA polymerase enzymes, it needs others enzymes like helicase but are not a dozen of them.
DNA polymerase synthesize DNA in a main chain of DNA but needs a primer of RNA that is made by the RNA polymerase. With this process the DNA and RNA polymerase synthesize a new DNA chain that is bind to the main chain.
Answer:
Humus (hummus) is a dark organic matter in the soil which is produced by the decay of leaves or twigs (leaf litter). The litter is decayed in the soil by the action of microbial communities and chemcial reactions (together called as biogeochemical reactions). This process is also known as decomposition. The higher humus content in the soil makes it more fertile because there are more nutrients releasing due to increased turnover of the decomposing bacteria. Further, humus formation is increased if more water (moisture content) and oxygen is available.
