B, d. is earth's orbit around the sun
Contour <span>interval (CI) </span>
Answer:
When discussing drought, one must have an understanding of aridity and the difference between the two. Aridity is defined, in meteorology and climatology, as "the degree to which a climate lacks effective, life-promoting moisture" (Glossary of Meteorology, American Meteorological Society). Drought is "a period of abnormally dry weather sufficiently long enough to cause a serious hydrological imbalance". Aridity is measured by comparing long-term average water supply (precipitation) to long-term average water demand (evapotranspiration). If demand is greater than supply, on average, then the climate is arid. Drought refers to the moisture balance that happens on a month-to-month (or more frequent) basis. If the water supply is less than water demand for a given month, then that month is abnormally dry; if there is a serious hydrological impact, then a drought is occurring that month. Aridity is permanent, while drought is temporary.
D) Mars & Jupiter is correct
Answer:
Letter B - India/Pakistan
Explanation:
The venue of the Green Revolution in India allowed to prevent a massive famine in India and Pakistan in the early 1960's, saving a great number of people in this second most populated country of the world.
A Mexican research team introduced a new variety of wheat in India during that period and that earned them a Nobel Prize in 1970.
