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Question 6 D
Hydraulic fracturing, or fracking, is the pumping of highly pressurized water with a mixture of sand and chericals into boreholes to
A create cracks within the rock in order to provide pathways for the release of gas and oil
B) pulverize the rock in order to let gas and oil rise through the soil horizons
creopen old mine shafts, from which gas and oil can be collected
D
create seismic movement and artificial earthquakes in order to liberate gas and oil
E
supersaturate the rock with the fracking fluid, which scrubs gas and oil from the rock by abrasion

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

1: most common garden plants prefer loam — soils with a balance of different-sized mineral particles (approximately 40% sand, 40% silt, and 20% clay) with ample organic matter and pore space. however, some plants grow better in sandy soils, while others are well-adapted to clay soils.

2: available water capacity is the maximum amount of plant available water a soil can provide. it is an indicator of a soil's ability to retain water and make it sufficiently available for plant use. available water capacity is the water held in soil between its field capacity and permanent wilting point.

3: it is the same for all living things (plants and animals). it also includes very tiny organisms that our eyes cannot see. they are known as microorganisms, and include viruses, bacteria and fungi.

correct answer: false

while planning water activities, it is very important to consider the weather, because if we do not plan and are going for a surf, then it might be that the hurricane came and drown us or may carry us to long distance from where we can not come back. there are many reasons to take information about the weather when we are planning any water activities.

hence, the correct answer would be false.