Answer:
burning of fossil fuels that release sulfur and nitrogen compounds into the air
Explanation:
Acid rain results when sulfur dioxide and nitrogen oxides are emitted into the atmosphere and transported by wind and air currents. Burning of fossil fuels to generate electricity.
Answer:
Arthropoda, Annelida, Chordata. (Ans. C)
Explanation:
Segmentation occurs in the body plan in which recounted body units are organized along the anterior-posterior axis, because of it the body of the species is divided into segments.
Segmentation in the body structure is essential for permitting movement and the evolution of specific body parts and also helps in allow regeneration in certain species. Segmentation occurs in three phylum Arthropoda for example fruit fly, Annelida such as leech, and Chordata such as a mouse.
Answer:
AUCUCAG
Explanation:
T --> A
A --> U (only with rna, when its not rna its T)
C--> G (vice versa)
Answer: mechanical weathering
Explanation:
Weathering is the breaking down of rocks into small fragments or pieces by agent such as animals,water, wind. Erosion helps in the transport of this materials from its region to another.
Mechanical weathering is also known as physical weathering, it causes rocks to crumble as a results of disaggregation of rocks which could results from cracks, freeze thawing.
Water is an important agent of mechanical weathering, in either liquid or solid form.
Liquid water can seep into cracks and crevices in rock as in the case of Lurray Caverns in Virginia,and rock fragments will be eroded this materials accumulation of this leads to a new formation of calcite. If temperatures drop low enough, the water will freeze creating an expansion in the rock that could results in a crack or fragments of rocks falling off.