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.
Answer:
Malleable and ductile properties indeed help minerals useful. Both properties are useful because they help in transforming the shapes of minerals. Malleability is a useful property since it can be flattened or pounded by a hammer. Also, the ductile property makes it possible for the minerals to be stretched in the form of a wire. These two properties makes it useful for minerals.
Explanation:
Malleable and ductile properties indeed help minerals useful.
Both properties help in transforming the shapes of minerals.
Malleability is a useful property since it can be flattened or pounded by a hammer.
The ductile property makes it possible for the minerals to be stretched in the form of a wire.
Answer: Option A) This is an anabolic process.
Explanation:
An anabolic process is simply a constructive process in which complex molecules are synthesized from simpler ones.
Thus just as photosynthesis or glycogen synthesis that yields complex molecules, since DNA replication leads to the synthesis of long double-stranded polynucleotides wounded together from a single strand (as in semi-conservative replication); we can therefore conclude that it is a anabolic process.
Answer:
there are not 7 steps of primary succesion and they only have 4 steps.
Explanation:
The complete process of a primary autotrophic ecological succession involves the following sequential steps, which follow one another:
Nudation:
Invasion:
Competition and reaction:
Stabilization or climax:
