Answer:
Two methods which help us to conserve water are:
Sprinkler irrigation system: this irrigation has an arrangement of vertical pipes with rotating nozzles on the top. It is more useful in the uneven and sandy land where sufficient water is not available.
Drip irrigation system: this irrigation system has an arrangement of pipes or tubes with very small holes in them to water plants drop by drop just at the base of the root. It is very efficient as water is not wasted at all.
The answer is d I think. Don’t quote me if I’m wrong
Carbon dioxide molecule is made up of one atom of carbon and two atoms of oxygen. Carbon has four electron in its valence shell while oxygen has 6 electrons in its valence shell. Thus carbon needs four electron to attain the octet structure and each oxygen atom needs two electrons to attain the octet structure; for the two oxygen atoms, four electrons are needed.
The type of bond formed in carbon dioxide is called COVALENT BOND. The two oxygen atom donate two electrons each and these are linked together with the four electrons on the outermost shell of the carbon atom. Thus, at the end of the bonding, each of the atoms will have 8 electrons in its outermost shell.
Answer: Gold
Explanation: gold has a density of 19.32 g/cm3 where silver has a density of only 10.49 g/cm3
B Silver Chloride
when you mix AgNO3- and NaCl- they make AgCl which is insoluble and settle to the bottom of the test tube, and NaNO3 which remains as a liquid solution
