They are rich in hydrogen and helium, they have unlimited supply of hydrogen, they have a strong gravitational pull.
Explanation:
Space where huge size of gaseous and dust cloud is present is called nebula. It is mainly made of hydrogen and helium. Nebula exist in the space which is between the stars and it is call as interstellar space.
Helix nebula is closest nebula which is near the earth. It’s distance from earth is about 700 light years.
Dark nebulae are very dense as well as cold. Nebula can be divided into dark nebula and bright nebula. The gas which is present between the stars is always combine with solid grains cosmic dust.
The natural selection among peppered moths of Manchester, England can be mainly attributed to to the abruptly increasing levels of Air Pollution in England as a result of thriving Industrial Revolution In the U.K.
Soot from power producing factories, etc resulted in complete eradication of lichens in the flora of the surrounding region.
The frequency of the newly evolved peppered moth increased as the dark colour was beneficial in a polluted environment like in Manchester.
Answer:
Emergency Operations Center (EOC) interconnected with the other NIMS Command and Command and Coordination structures through the Joint Information System JIS, which provides the mechanism to organize, integrate, and coordinate information to ensure timely, accurate, accessible, and consistent messaging across multiple jurisdictions and/or disciplines, including the private sector and NGOs.
Explanation:
they include floodwalls/seawalls, floodgates,levees, and evacuation routes. Nonstructural measures reduce damage by removing people and property out of risk areas. They include elevated structures, property buyout, permanent relocation, zoning, subdivision, and building
Because high iron baby formula will raise her iron levels and help anemia.