Well an aerogenerator is a wind driven electric generator, so your answer will be Wind!
Answer: Wind
-BTS fan
Answer no 8:
The correct option is D) Antelopes with muscular legs are bale to outrun their predators better than antelopes with poor muscle tone. Thus they lived to reproduce.
Explanation:
Genetic variations in a population are the main reason that natural selection tends to occur. Natural selection favours those organisms which have better characteristics.The organisms with better traits are able to reproduce and pass on their characteristics to their offsprings.
Answer No 10:
The correct option is A) Phenotype directly influences the interaction of an organism with its environment.
Explanation:
The interactions between the phenotypic traits and the environment analyze whether a particular organism will be able to survive and pass on its characteristics to its offspring. Hence, the phenotype directly influences the interaction of an organism with its environment.
Answer No 9
The correct option is A) resistance to a virus
Explanation:
Mutations can be described as any changes which occur in the DNA of an organism. Mutations might be beneficial or harmful depending on the location where the mutation arises. Viruses are usually harmful for eukaryotes. Hence, the correct option is A.
Answer No 11:
The correct option is C) Giraffes with longer necks survived because they were better suited to the environment.
Explanation:
Natural selection tends to favour those organsims which are better suited to live in an environment. Those organisms with better characteristics are able to survive and pass on their traits to their offsprings.
The giraffes with longer necks were better adapted to live in the environment and hence were favoured by natural selection.
Answer No 12:
The correct option is D) selective breeding
Explanation:
Selective breeding can be described as a technique in which organisms with better characteristics are crossed, so that offsprings with better characteristics can be produced. Selective breeding is done by humans where as natural selection is done by the nature.
Answer: Oxygen atom has 8 Protons
Explanation:
Oxygen atom (O) has an atomic number of 8, and a mass number of 16.
Recall that atomic number of any element is equal to the number of protons in its electronic shell, hence, the number of protons in oxygen atom is also 8
Answer:
Evaporation is the process which allow water molecules to move between lakes and the atmosphere.
Explanation:
Evaporation is a process in which water which is present in liquid form in lakes and ocean evaporated in the form of water vapours. These vapours goes upward and form clouds which moves toward hilly areas with the help of wind. The water present in the clouds come back to the land in the form of rainfall and snowfall. This water flows through the streams and collected in the rivers again and repeat this process.
Answer:
An ecosystem exists within a biome. Biomes are home to many species of animals, which interact with one another to create an ecosystem.
Explanation:
An ecosystem is defined as "the interaction of plants and animals with nonliving things and each other." A biome is defined as "a large region of the world that has similar plants, animals and other organisms that are adapted to the terrain and weather of that region."
