The three type of tectonic plate boundaries are:
Convergent- two plates are moving towards each-other. Forms volcanoes, mountains and can cause earthquakes too.
Divergent - two plates are moving away from eachother. The space that is created between them is filled with lava from the mantle which cools to become part of the crust. These areas are hotspots.
Transform - two plates are moving against eachother (one down, one up etc.) They cause minor earthquakes.
Nails are made of iron because, iron is strong and sturdy; although nail rust when it undergoes oxidation when expose to water but it is not explosive.
Barium and phosphorus are not suitable for nail making because of their properties.
Barium is an element which reacts with virtually all non metals, forming poisonous products which are dangerous to health and to the environment. It also reacts explosively with water.
Phosphorus is not found in its pure form in nature, it conducts electricity and it is combustible in nature.<span />
1. RNA has ribose sugar instead of deoxyribose
2. RNA is generally single-stranded instead of double-stranded
3. RNA contains uracil in place of thymine
Answer:
It lacks a wall thus use the contractile vacuole to collect and expel excess water from the cell.
Explanation:
- The contractile vacuole regulates the quantity of water inside a cell through a process known as osmoregulation.Osmosis constantly drives water in the cell since it is enclosed by a semipermeable membrane that can not keep the water out thus it is needed to prevent rupturing of the cell due to excess water in the cell.
Answer:
primary active transport
Explanation:
primary active transport directly uses a sources of chemical energy ATP to move molecules across a membrane against their gradient
