Answer:
answer 15 correct option is b. 73.7°
answer 16 correct option is с. 47°
Explanation:
we know that on 4th july Northen hemisphere have summer and Washington, D.C also in Northen hemisphere
and sun present at 23.5° latitude
so latitude of sun is calculate as given figure below
= 90° - ( 39° - 23.5° )
= 74.5°
so correct option is b.73.7
this difference if because we take latitude 23.5° that is approx on 24 july
but july 4 latitude will be some low
and
we know during summer declination angle is + 23.5 in N.H.
and during winder declination angle is - 23.5 in N.H.
and at spring and autumn sun is at equator
the declination angle change is
declination angle change = 27.5 + 27.5 = 47°
1:3, you simplify 4 divided by 4 and 12 divided by 4
The western part of Canada falls into the territory of the province of British Columbia. This region is dominated by mountain ranges. The largest mountain ranges are the Canadian Rockies, Coast Mountains, Cassiar Mountains, and Columbia Mountains. All of these mountain ranges stretch roughly in a north-south direction.
The reason why this region is dominated by mountains is the geologic activity. The Pacific plate is subducting under the North American plate in this area. The subduction cause the land near the plate boundary to lift up, thus over time these mountains were formed. The process though is not over, as the subduction is still taking place and will for the foreseeable future, thus these mountain ranges should continue to grow and become even more dominant land features.
Answer:
They have been shaped by physical weathering.
Explanation:
Physical or mechanical weather is the type of erosion responsible for breaking down rocks without chemical processes. There are many types of physical weathering that affect the landscape in many ways.
- Thermal stress makes a rock expand and contract and eventually break.
- Frost causes cracks in rocks by fracturing them during the formation and melting of water molecules.
- The Oceans weather coast lines through wave action and salt crystal weathering.
- In a process known as unloading, rocks formed underground and exposed to the surface can fracture.
- The weight and power of glacial masses erodes glacial valleys through abrasion.
In April 1994 in Rwanda (East Africa) began the genocide of Tutsi - an ethnic minority, which for centuries dominated the Rwandan majority - Hutu. During the 100 days of incredible violence, about 800 000 Tutsi and moderate Hutu were murdered. The international community, unfortunately, didn't respond to this event on time. The conflict was considered as an internal case and the Security Council of the UN didn't decide to intervene. Even though the scale and character of the conflict was well known the United States didn't want to get involved because of a painful experience from its intervention in Somalia in 1993 (the story was presented in the movie Black Hawk Down).
The UN troops arrived in Rwanda when the major fights were over. They assisted only by the burial of deaths and protected the survivors. Today we know that other countries (for example France and China) were selling arms to the Rwandan government.
What could be the response? The international community could prevent the growing hostility and animosity between Hutu and Tutsi already before the genocide. They should have introduced an embargo on arms in order to prevent the escalation of violence. When the conflict had begun, a military intervention should have taken place.