Answer:
mechanical weathering:
ice wedging: does not change rocks composition: abrasion
chemical weathering:
oxidation: changes rocks composition: acid rain
Answer:
1. C. Condenser
2. C. 100
3. d. concentrate light coming from the bulb
Explanation:
The Condenser is the part of a microscope that helps to condense the light rays thereby making the visuals clearer and more efficient. This is possible by the increase in concentration of the rays .
The total magnification of the cells when using the immersion objective of bright field microscope is 100x.
The role of the immersion oil is to concentrate light coming out from the bulb
The right option is d. Perimenopause
Perimenopause is the transition
phase between regular menstrual periods and no periods at all. It takes place
over several years in advance of the menopause. Perimenopause generally starts
for women in their mid-40s and it can start even earlier. Symptoms of Perimenopause include fatigue, breast
tenderness, irregular periods and mood swings.
<span>Creativity helps a scientist by allowing him or her to
write more interesting lab reports, draw better diagrams for reports, look at old problems in new ways and pick interesting observations to include as data.</span>
Explanation:
goods can be restricted to keep prices high. This leads to underprovision, or scarcity