Explanation:
Molecules contain two or more atoms and are held together by covalent bonds, whereas compounds are held together by ionic bonds. Two or more elements bonded together through ionic attraction.
It is obvious that the sandstone is older than the granite. This is because the sandstone had to already exist when the granite formed from molten rock, as some of the sandstone was captured within the layer of hardening granite. The geological principle of inclusions supports this conclusion.<span> Inclusions, in this case the sandstone, are always older than the rock they are found in. </span>
<u>Conservation is the most important strategy in the soil management programs of agriculture</u>
In the soil management various practices are followed which will help to conserve the soil and so as to increase the fertility of the soil. Being the most important step conservation is very mandatory, as the building up of new soil will take a lot of time. It also protects the soil from the bad weather and protects the erosion. In conservation process it helps in the nutrient preservation, which can give good yield when practised cultivation. More crops can be easily grown , which will fetch more money. The conserving soil can also help in biochar fertilizer.
Answer:
A. The variation resulting from meiosis and the union of gametes means some individuals will have a chance of colonizing diverse distant environments successfully.
D. Vegetative propagation is more efficient than sexual reproduction when the current generation is well adapted to the local environment.
6. Lion
7.raccoon
8.rat
9. A keystone is a organism that helps define the entire ecosystem, and if the species were to disappear from the ecosystem no other species would be able to fill its ecological niche the ecosystem would be forced to radically change allowing new and possibly invasive species to populate the habitat.
