<span>So far, astronomers have found more than 500 solar systemsand are discovering new ones every year. Given how many they have found in our own neighborhood of the Milky Way galaxy, scientists estimate that there may be tens of billions of solar systems in our galaxy, perhaps even as many as 100 billion.</span>
Explanation:
- Mechanical weathering involves the breakdown of the rocks into small pieces by the external support such as pressure whereas Chemical weathering involves the breakdown of the rocks takes place by the chemical process.
- Mechanical weathering is a physical change that is caused by the movement of wind and water whereas chemical weathering takes place when the chemicals present in the air or water get mixed with minerals or rocks.
- Mechanical weathering involves:
Abrasion, freezing, thawing, exfoliation.
- Whereas Chemical weathering involves:
dissolution, oxidation, carbonation, hydrolysis.
Answer:
correct option is corridors
Explanation:
we know that here in the ecology
to counter habitat fragmentation corridors are being constructed
so here we can say that corridors is a functional component of wild life
it is associate with megafauna whose population they are designed to conserve and Corridors is critical for the maintenance of ecological process
including allow for movement animals and viable populations
regional corridor is primary land scape connection between the large area of habitat
so we can say correct option is corridors
Answer:
Unfavourable climate
Explanation:
Africa mainly in the Northern parts face a problem of unfavourable climate is too much sunshine that leads to drought and starvation
