Answer:
Option (3).
Explanation:
Teratogens may be defined as the chemicals that can cause birth defects in the fetus. Substances like alcohol, lead and nicotine acts as the main agents of tertaogens.
Shamona is drinking water that contains high level of lead. The element lead is harmful for the fetus. Even the small concentration of lead is enough to cause birth defects. The lead exposure can cause the abnormal development of brain and damages the brain of fetus. The fetus has low birth weight also.
Thus, the correct answer is option (3).
Increase.
Unless there is more information missing from this passage; the quality of soil will increase as sustainability increases. With a lack of additions from foreign substances, the earth shall regain its initial strength to grow whatever crop.
D combination of DNA and proteins in the nucleus of a cell
Answer:
Generally both theses two region are similar in the concentration of salt water they contain(both have salt water) and both have hard surfaces.
However, the Coral reefs are usually warm, with sunny environment. It is always submerged,( always covered by water), and very shallow.Complex animals of the aquatic bodies are in the coral reef from varieties of fishes, (shark, rayfish to sponges, etc,. These animals compete for space.
The intertidal zone, one of the three zones, of a typical reefs,is a marine shoreline with constant exposure to air.Hence always above water,unlike Coral reefs.
The continuous fluctuation in tides always change the intertidal zone. Due to constant aeration fro tides, varieties of animals like sea urchins,sea-stars, limpets fished and diverse phyla of species populated this environment,
Energy. It allow the plant or animal to make cellular respiration happen.
