The answer is A. agriculture because urban land use and development emerged is agriculture.
No, because it takes almost a month to observe all of the moon's phases.
Answer : Option C, The sample will mainly consist of granite.
Explanation:
Sample collected from was continental crust (a part crust) as the samples were from 60 km deep. Continental crust ranges from 30 km to 70 km and this layer is mainly includes granite. This continental crusts is mainly responsible for formation of distinct land-forms like continents.
Statement A ,B and D informs us about the state and temperature of metals(iron) in core that is inner most layer of the earth.
Answer:
False
Explanation:
The humans have very big impact on the environment, and this can be seen very well with the trees, or rather the forests. The majority of the human impact on the trees has indeed been negative, with enormous amounts of land being total stripped of trees. The main reason for such actions have been the opening up space for agriculture, building infrastructure, creating settlements...
The humans also had positive impact on the trees, and that should not be put aside. Lot of types of trees have experienced expansion in new areas because of the humans, mostly fruit trees, as they have been used for food. Numerous areas that are arid or semi-arid have been forested by the humans in order to increase the tree fond, reduce erosion, and even make a place more beautiful.
