Questions

Stratification as actually the settling down of sediments with different properties to form layers/strata over years. Stratification especially occurs on the bed of water bodies such as oceans.

Stratified sedimentary rocks are used to study the ecological conditions over previous years/eras.  

The other choices like Windstorms, Glacial Ice and Stream water are mediums which sediments are transported.

One word substitution for Be the embodiment or perfect example of is Personify. Personify means represent or embody (a quality, concept, etc.) in a physical form.

Characterise: describe the distinctive nature or features of.

Idol: an image or representation of a god used as an object of worship.

Signify: be an indication of.

The correct statement among the given options about the process of scientific inquiry is "It is possible to test hypotheses, such as those involving historical events, without conducting experiments."

Although it is not possible to carry out experiments to test hypotheses about evolutionary relationships between living groups or about the timing of the origin of major evolutionary innovations, such hypotheses can be evaluated by making predictions about the expected findings that would result from these hypotheses. Data can then be collected to test whether these predictions are correct.

IBM has unveiled the world's smallest computer - a device no bigger than a grain of salt. Presented at the company's Think 2018 conference in Las Vegas, Nevada, the unit measures just 1mm by 1mm but has the same processing power as the x86 chip that ran early Nineties IBM desktop computers.

Hydroelectricity is electricity produced from hydropower i.e, water.

The owner first lost Rs. 100 in cash, but after the thief bought Rs. 60 goods, he get back that Rs. 100 but he lost Rs. 60 value of goods and Rs. 40 in change.

So, a total of 60 + 40 = Rs. 100 the owner lose.

Nutrients that are needed in large amounts are called Macronutrients.

There are three macronutrients required by humans:

1. carbohydrates (sugar),

2. lipids (fats), and

3. proteins.

Each of these macronutrients provides energy in the form of calories.

Some other macronutrients are: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), sodium (Na).