Soil and Foundation Engineering

This is a classic riddle. A hole is defined by the absence of material. Regardless of the dimensions (1m x 1m x 1m), a hole contains no soil because if it contained soil, it would not be a hole.

A hole is an empty space in the ground created by removing dirt. By definition, a hole contains no dirt - the dirt has been removed to create the space. The dimensions of the hole don't change this fundamental fact.

Tide Hunter's ultimate Ravage is a massive AoE stun that creates a wave. The AoE radius scales with level - 850 at level 1, 950 at level 2, and 1050 at level 3. This makes it one of the largest teamfight ultimates in Dota 2.

Sand King's Burrowstrike is a point-targeted stun that also moves Sand King. The casting range increases by 50 with each level - 500 at level 1, 550 at level 2, 600 at level 3, and 650 at level 4. The burrow distance itself is longer than the casting range.

This is a lateral thinking riddle. A hole is empty space by definition, so there is zero soil in it regardless of its dimensions. The radius and depth measurements are red herrings - the volume of soil in a hole is always 0. Option B is correct with '0 square cm' though strictly it should be 0 cubic cm.

A hole is empty space by definition - the dirt that was there has been removed to create the hole. The other options (half KG, 100 gram, 50Mg) all incorrectly assume dirt remains in the hole.

A hole contains no dirt - it's empty space. By definition, once dirt is removed to create a hole, the hole contains nothing.

Sandy soil has larger particles and more pore space, allowing water to infiltrate quickly into the ground. Clay soil has tiny particles that pack tightly, creating poor drainage and high runoff. This is why sandy areas experience less surface runoff compared to clay-heavy areas.

Slightly overinflating tires (within safe limits) can reduce rolling resistance, which may improve fuel economy. However, this must be done cautiously as excessive overinflation can cause safety issues and uneven tire wear.

To solve this question, the user needs to know the relationship between tire pressure and mileage.

The correct answer is:

A. True

Explanation:

Maintaining the optimal tire pressure is important for the safety and longevity of the tires, as well as the fuel efficiency of the vehicle. Filling up tires with marginally more PSI than the specified limit provides better fuel efficiency, which means you can drive more miles per gallon. Overinflating the tires can lead to a rougher ride and uneven tire wear, but a slight increase in pressure can result in better mileage. Therefore, it is true that filling up tires with marginally more PSI than the specified limit increases mileage.

When soil has very high absorption capacity, water gets tightly held in small soil pores through capillary forces. This strongly bound water becomes less available for plant roots to extract, creating a situation where greater absorption can reduce the water that plants can actually use. Poor percolation soils waterlog and hold water too long, while percolation rate affects drainage efficiency.

Porosity is defined as the percentage of total soil volume occupied by pore spaces (voids between soil particles). It determines how much air and water the soil can hold. Water holding capacity is related but refers specifically to water retention, not the pore space percentage itself.

The depth at which all the pore spaces are saturated with water only is called water level. The depth at which soil pore spaces or fractures and voids in rock become completely saturated with water is called water level. Groundwater is recharged and eventually flows to the surface naturally. 

Option B is incorrect because higher absorption by soil means better water retention and greater availability to plants over time. Poor percolation (option A) does cause waterlogging, making it correct. Checking percolation (C) is important for plant growth. Soil does contain moisture (D) - all correct statements except B.