Answer:
A vertebrate is an animal or species distinguished by its possession of a backbone or spinal column. Vertebrates can be insects, fish, mammals, birds, reptiles, and also amphibians.
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Answer:
The layer of greenhouse gases is permeable to one side and not permeable to another side.
Explanation:
Greenhouse gases such as carbondioxide, methane and water vapors etc formed a layer which allow the sun radiation to the earth surface but when these radiation reflected back, this layer traps these reflected radiation and the radiation remain suspended in air which heat up the particles present in the air and increases the temperature which causes global warming of earth surface. This phenomenon is also called greenhouse effect and it is also very useful in growing crops in cool seasons. So this layer is permeable from one side and not permeable from another side.
Many South Africans had to live in make-shift shelters such
as tents after war. This was due to the
scorched earth policy that the British used against Boer commandos that led to the
weakening of their resolve. Prior to
this, families were also rounded up and placed in camps guarded by the British
which demoralized the Boers.
Answer:
Canes Venetic, Centaurus, Coma Berenices, Corves, Crux, Musca and Virgo. Canes Venetic and Coma Berenices are northern constellations, while Centaurus, Virgo, Corves, Crux and Musca lie
Explanation:
