The disc which contains spiral arms of the galaxy part would be used to study the birth starts in a spiral galaxy
Explanation:
- A galaxy has four parts and they are bulge, disc, spiral arms and halo
- Bulge primarily contains old stars, gas and dust.
- The disc contains the spiral arms also, it is the flattened portion of the spiral arms where we could find most of the young stars, gas and dust. Some old stars are also found in this region
- Spiral arms are only found in spiral galaxies. It is the curved extension begins from the bulge. Here, also you could find young stars, dust and gas.
- Halo is the part where we could find clusters or individual old starts and also the dark matter. The dark matter we can't see but can estimate the gravitational force.
Answer:
Physical factors that influence the location of a settlement include; 1. Water supply – settlements need water, they often locate on wet point sites for this. Settlements built away from rivers and water supplies to avoid flooding are located at dry point sites.
Answer:
Near Modern-Day Pakistan.
Explanation:
Most scholars believe Hinduism started somewhere between 2300 B.C. and 1500 B.C. in the Indus Valley, near modern-day Pakistan. But many Hindus argue that their faith is timeless and has always existed. Unlike other religions, Hinduism has no one founder but is instead a fusion of various beliefs.
Answer:
B Islam
Explanation:
Africa is right in the middle, and has a large population of Sunni Islam religion. You can see in the Northern part of Africa, that Islam dominates it.
Planting more trees - the roots of trees hold the soil together and help to reduce soil erosion from wind and rain.
Improving the quality of the soil - this can be managed by encouraging people to reduce the number of grazing animals they have and grow crops instead. The animal manure can be used to fertilise the crops grown. Growing crops in this way can improve the quality of the soil as it is held together by the roots of plants and protected from erosion. This type of farming is more sustainable.
Water management - water can be stored in earth dams in the wet season and used to irrigate crops during the dry season. This is an example of using appropriate technology to manage water supplies in the desert environment.
Magic stones (or bunds) are circles of stones placed on the ground to hold water on the soil rather than letting it run quickly over the surface.
Drip irrigation is where water drips slowly onto the ground from pin-sized holes in a hose lying on top of the soil. This minimises water loss, maximises effectiveness and can be delivered via a solar pump.
